Review - Is ByteByteGo System Design Interview Course by Alex Xu Really Worth it in 2025?

Hello guys, if you are preparing for System Design Interview in 2025 then you may have most likely come across names like ByteByteGo, Alex Xu or System Design Interview - An Insider Guide by Alex Xu, and if you are wondering what they are or you know about them but thinking whether ByteByteGo is worth it or not in 2025? then you have come to the right place. Yes, ByteByteGo is indeed worth considering for your System Design Interview preparation. because its created by Alex Xu, an expert with FAANG interview experience and platform offers in-depth coverage of system design topics. The author's use of diagrams to explain concepts in detail enhances the learning experience and most importantly Alex Xu regularly and new content and update old ones,.

Is Pramp a Good Place for System Design and Coding Mock Interviews in 2025?

Hello guys, if you are preparing for tech interviews in this tough market then you may know that preparing for technical interviews can be a daunting task, especially when targeting top-tier companies like FAANG (Facebook, Amazon, Apple, Netflix, and Google).  But, good resources can make this task slightly easier for you.  In the past, I have shared the best Coding interview books, courses, and websites as well as System design books, courses, and websites to prepare well for both Coding and System design interviews. While these books and courses are essential for tech interview preparation if you want to crack FAANG interview then you must do Mock interviews, as many as possible.

4 Steps to Prepare for System Design Interviews in 2025? [The Ultimate Guide]

Hello guys, if you are preparing for Software Engineer Interviews, or Software developer interview then you may know that how difficult it is to prepare for them because of  System Design interviews, given its open ended nature and vastness but at the same time you cannot ignore it. In Software Engineering world, if you are applying for a Senior Engineer / Lead / Architect / or a more senior role, System Design is the most sought-after skill, and hence one of the most important rounds in the whole process. If you mess this up, nothing else would matter. If you get it right though, you’re looking at a raise of at least tens of thousands of dollars annually. 

How to System Design Trade Position Aggregator? [Solution]

Hello guys, it's been a long since I shared object-oriented design and system design questions in this blog. It was almost 7 to 8 years when I last blogged about how to solve vending machine design problems in Java and Twitter System Design question? Actually, I had ideas for lots of such design questions at that time, but because of the lengthy nature of these kinds of posts and the amount of time they take, they just sit on my list of drafts. I thought to take them out and publish then slowly improve on them instead of publishing the perfect post for the first time, and today, I am excited to share one of such problems, how to design a trade position aggregator in Java. This program is like portfolio management software that monitors your risk and exposure in real-time based on trades. 

Review - Is System Design Interview - An Insider's Guide by Alex Xu and Shan Lam worth?

Hello guys, if you are preparing for System design interviews or Software Design Interviews, then you must have come across System Design Interview - An Insider's Guide by Alex Xu and Shan Lam, one of the most popular book on System Design after Designing Data-Intensive Applications by Martin Kleppmann. I first come across Alex Xu on Twitter when one of his image about how HTTPS works went viral. The image was quite detailed and presentable so I start following Alex and then I come across ByteByteGo, his online System design course and his book System Design Interview - An Insider's Guide. 

Top 10 System Design Courses for Beginners and Experienced Developers in 2025 - Best of Lot

Hello guys, if you are preparing for System design interview and looking for best online courses to learn essential System design concepts like load balancing, API Gateway, scalability, Microservices architecture as well as learn how to solve popular System design questions like how to design YouTube, WhatsApp, Parking Lot, Library System as well when to use NoSQL and SQL then you have come to the right place.  In the past, I have shared best System Design Books, Free System design courses,  System design prep guide, and System Interview Questions and in this article, I am going to share best System Design Courses for beginners and experienced Software Engineer to level up their System Design skills in 2025. 

Top 20 System Design Interview Questions with Answer for 1 to 3 Years Experienced

Hello guys, if you are preparing for FAANG or any Software developer Job Interview on Startup or a Tech company like Spotify, Flipkart, or Zoom but worried about System design questions then you are not alone. System design is an intimidating topic and requires a lot of study and experience to design a real world system. While it's not a rocket science the knowledge of different system design components and concepts are hard to acquire. In the past, I have shared best System Design Courses and best Software architecture courses as both are related to each other and in this article, I am going to share 20 System Design Interview Questions with answers for programmers with zero to 3 years of experience. 

How to design a Messaging App like Twitter on System Design Interview? [Solution]

Hello guys, if you are preparing for system design interview and looking for common System deign problems and resources then you have come to the right place. In the past, I have shared best System Design courses, books, websites, newsletters, cheat sheets, mock interviews, blogs, tips, GitHub repo, and 100+ System Design Interview Questions and Problems and today I am going to discuss one popular System deign problem — designing Twitter or X.com. Designing a complex system like Twitter can be challenging, especially in a system design interview.

Top 8 Udemy Courses to Learn System Design and Software Architecture in 2025 - Best of Lot

Hello guys, if you want to learn Software Architecture and System design in 2025 and looking for best resources then you will be happy to know that  I am going to share  8 best Udemy courses to learn Software architecture and System design for 2025. if you are preparing for technical interviews for Software Engineering job then you may be aware of  Software Design or System design. It is one of the most important but at the same time very tough topic to master and many programmers even experienced developer struggle to solve System design problems during interview, particularly while interviewing with top tech companies like Google, Meta, Amazon, Apple, Microsoft, Netflix etc, popularly known as FAANG (now MAANG) since Facebook is now Meta. 

Top 10 Free Courses for System Design Interviews in 2025 - Best of Lot

Hello guys, if you are preparing for System Design Interview or just want to improve your Software design skills and looking for best free resources like tutorials and free online courses then you have come to the right place. In the past, I have shared best System design courses, books, websites, and popular System design questions but a lot of you asked for free resources and that's why I am going to share best free System design courses I found online. These online System Design training courses are completely free and provides a diverse knowledge about different System design concepts and process. 

Top 10 System Design and Software Analysis and Design Books in 2025 - Best of Lot

Hello guys, System design and Software design are two important topic for coding interviews and also two important skill for Software developers. Without knowing how to design System you cannot create new software and it will also be difficult to learn and understand existing software and system. That's why big technical companies like FAANG pays special attention to System design skill and test candidates thoroughly. If you want to learn System design and looking for best resources like best System design books and courses then you have come to the right place. Earlier, I have shared best System design online courses, as well as Software architecture courses,  and common System design questions and in this article, I am going to share with you best System design books to learn Software design. 

Review - Is Grokking the System Design interview Course on DesignGuru Worth it?

Hello guys,  we are here again today for another exciting topic to discuss. But today, we will not discuss something related to Java or any other language or spring boot. Today, we will discuss something that is immensely practical and has the potential to land you very high-paying jobs. Today we are going to review a course that focuses on System Design! System Design is crucial for coding interviews! And it's also one of the most challenging topics to master. I have shared the best System design courses for coding interviews and books in the past. Today, I will review one of the top system design courses for technical discussions, Grokking the System Design Interview by Design Gurus.

100+ System Design Interview Questions and Problems for Software Engineers

Hello guys, if you are preparing for System Design interviews then you may know that you have to prepare for theory questions as well as System design problems where you need to design a real world system like WhatsApp, YouTube or DropBox. Theory questions are mostly based upon System design basics and core concepts like Scalability, Caching, database sharding, load balancer, API gateway, security, proxies, messaging queues and software architecture, particularly Microservices. I have been sharing a lot of system design preparation material from last few years, in for example, in the past, I have shared System Design Interview Prep Guide as well as best System design interview books, courses, cheat sheets, and websites and in this article, I am target to share 100+ System Design Interview questions as well as System Design Problems.

Top 10 Websites to Learn System Design and Software Design in 2025 - Best of Lot

Hello guys, if you are preparing for System design Interview and looking for best resources to master Software design and System design then you have come to the right place. Earlier, I have shred best System Courses, Books, System Design Interview Guide, Cheat Sheets, and System Interview Questions and in this article, I am going to share best places to learn System design in 2025. Before we get to the best websites that will teach you everything you need to know about system design, let me tell you a little bit about what it really is. Systems design is basically the process of defining elements of a system including modules, architecture, components, interface, and data for a system based on a specific set of requirements. It can also refer to the process of defining, developing, and designing systems. These designs have to satisfy the specific needs of a company or an organization.

DesignGurus.io Review - Is Grokking Advanced System Design Interview Course Worth it? (2025)

Hello guys, Before I give my review of DesignGurus.io's Grokking Advanced System Design Interview course, let me tell you a little bit more about this course so that we are on the same page. As you must already know if you have ever gone through for a software engineering interview, system design questions are an integral part of the process. System design plays a very important part as it is considered more important than solving coding problems. And in order to impress your potential employers, you have to be able to show your real design skills and convince them that you are able to work with complex design systems.

Educative Review - Is Grokking Modern System Design for Software Engineers and Managers worth it?

Hello guys, System Design Interview is one of the hardest part of any coding or programming job interview and it requires a lot of preparation and knowledge to crack system design interview. You need to know a lot of System design concepts like API Gateway, Load Balancer, Microservices vs Monolithic architecture, SQL vs NoSQL, Horizontal vs Vertical scalability and much. If you are preparing for System design interview then you may have come across that Educative.io has one of best System design courses like this one and Grokking the System Design Interview.  Before I give you my verdict on whether you need to choose Educative's Grokking Modern System Design For Software Engineers And Managers course, let me tell you a little bit about what system design really is.

Review - Is Machine Learning Specialization By Andrew Ng and DeepLearning.AI on Coursera worth it?

Hello guys, if you are following Andrew Ng on Twitter then you may know that his popular free Machine Learning course from Stanford is now turning into full fledged Machine Learning specialization from both Stanford and DeepLearning.ai, which is a great new for all the people who want to learn Machine Learning from scratch. There are many people like me who got our first introduction to Machine Learning using that course and its no surprise that more than 5 million people have already joined this course. 

Review — Coding Interview Patterns: Nail Your Next Coding Interview by Alex Xu & Shaun Gunawardane: Is It Worth It?

Hello guys, if you are wondering whether Coding Interview Patterns: Nail Your Next Interview book by Alex Xu and Shaun Gunawardane is worth it or not then you have come to the right place. Yes — Coding Interview Patterns is a strong book for anyone preparing coding interviews (especially algorithm / data structure rounds). It will teach you essential coding patterns like two pointers, fast and slow pointers, sliding window, prefix sum, Hash table, Set, DFS and BFS which can be used to solve most of the coding problems from interviews. It won’t cover every corner (no single resource ever does), but it does pattern-recognition, explanation clarity, and problem variety very well. Combined with ByteByteGo platform and the 50% discount on lifetime plan, it becomes a powerful part of your interview prep stack.

ByteByteGo vs. DesignGurus vs. Educative: Which One Is Best for System Design Interview in 2025?

Hello guys, System design interviews remain one of the most difficult hurdles for software engineers in 2025. Unlike coding interviews, where you can practice data structures and algorithms with LeetCode-style problems, system design requires a mix of architectural knowledge, trade-off analysis, and real-world problem-solving skills. With FAANG and top-tier startups continuing to emphasize these interviews, software developers and engineers need the right preparation resources. 

And, when it comes to System Design Interview preparation, today, the most talked-about platforms for system design prep are:

• ByteByteGo (by Alex Xu, author of System Design Interview books)

• DesignGurus.io (founded by ex-FAANG engineers, hands-on system design courses and mock interviews)

• Educative.io (a massive interactive learning library with system design tracks and practice content)

But which one is actually the best for you? Let’s break them down one by one.

Review - Is System Design Interview - An Inside Guide Vol 1 and 2 Books Worth It?

Hello guys, if you are preparing for System design interviews or Software Design Interviews, then you must have come across System Design Interview - An Insider's Guide by Alex Xu, one of the most popular book on System Design after Designing Data-Intensive Applications by Martin Kleppmann. I first come across Alex Xu on Twitter when one of his image about how HTTPS works went viral. The image was quite detailed and presentable so I start following Alex and then I come across ByteByteGo, his online System design course and his book System Design Interview - An Insider's Guide. 

Top 5 Frontend Masters Courses for Full-Stack Developers in 2025

 The role of a full-stack developer has never been more exciting—or more in demand. Companies today want engineers who can move seamlessly between frontend and backend, design APIs, integrate databases, and deploy applications that scale. If you’re aiming to thrive in this space in 2025, learning from the right resources is critical.

How I Combined ByteByteGo and Codemia.io to Crack My System Design Interview in 2025

Hello guys, Preparing for a system design interview is one of the toughest challenges for software engineers. Unlike coding interviews, where the solutions are often precise and testable, system design is open-ended. You’re asked to design platforms like WhatsApp, Twitter, Spotify, URL shortener, or payment systems, and the evaluation is based on your ability to make trade-offs, structure scalable architectures, and communicate clearly. This is all easier said then done and most of the candidate froze when asked to design a real world system on interview. 

When I started my preparation journey, I quickly realized two things:

1. Concepts and visuals matter – I needed a way to deeply understand distributed systems, caching, load balancing, consistency, and other fundamentals.

2. Practice matters even more – It wasn’t enough to read; I had to apply concepts to real-world problems and practice under interview-like conditions.

That’s when I discovered the power of combining ByteByteGo with Codemia.io—a combination that turned out to be the secret weapon in cracking my 2025 system design interviews.

Is ByteByteGo a Good Place to Learn Object-Oriented Analysis and Design in 2025?

Hello guys, when it comes to software engineering and development, certain skills never go out of fashion. Programming languages evolve, frameworks change, and tools get replaced every few years—but Object-Oriented Analysis and Design (OOAD) remains timeless,  they were there 20 years back and they are still here. It’s the foundation of how we model problems, design robust systems, and write maintainable code.

Review - Is AI Engineering Book by Chip Huyen worth it?

“We are no longer asking how to build models; we’re asking how to build products that use models.” — Chip Huyen, AI Engineering: Building Applications with Foundation Models 

The book AI Engineering  is Chip Huyen’s deep dive into how to build real-world AI applications using foundation models — the blockbusters like GPT-4, Claude, etc. It’s not just hype; it explains what actually works, what pitfalls to avoid, and how you, as a software engineer, can step into the role of “AI Engineer” with confidence. 

Educative.io vs DesignGurus.io: Which is Better for System Design Interview Prep in 2025?

Hello guys, Preparing for system design interviews has become one of the toughest challenges for software engineers. Unlike coding interviews that focus on algorithms and data structures, system design questions test your ability to architect large-scale systems, think about trade-offs, and apply distributed systems principles to real-world scenarios. Over the past few years, several platforms have emerged to help engineers crack these interviews. Two of the most popular ones in 2025 are Educative.io and DesignGurus.io. 

Educative Review 2025 – Is Educative a Good Place to Learn System Design in 2025?

Hello guys, System design interviews have become one of the biggest hurdles for software engineers aiming to land roles at top tech companies, especially for mid level and senior engineers. Whether you’re preparing for FAANG-level interviews, moving into senior engineering roles, or simply want to strengthen your architectural thinking, mastering system design is non-negotiable. Over the years, many resources have emerged—books, YouTube channels, bootcamps—but Educative.io has consistently stood out for its practical, text-based interactive courses.

ByteByteGo vs Udemy: Which Is Better for Learning System Design in 2025?

Hello guys, System Design is one of the most important skills for software engineers aiming to crack FAANG-level interviews, build scalable systems, or transition into senior engineering and architecture roles. At the same time, its also one of the skill which is hard to master, but with so many platforms claiming to be the best place to learn System Design, the real question is: where should you invest your time and money in 2025 — ByteByteGo or Udemy?

Udemy Personal Plan vs Coursera Plus: Which One is Better in 2025?

Hello Guys, online learning has exploded over the last decade, especially during COVID time, and by 2025, two platforms continue to dominate the conversation: Udemy and Coursera. While earlier Udemy was famous for its affordable courses and Coursera for its comprehensive and structured professional certificates, now both offer subscription models—Udemy Personal Plan and Coursera Plus—that give learners unlimited access to thousands of courses for a flat fee.

Review — Is Udemy Still Worth It in 2025?

Hello guys, If you are wondering whether Udemy is a good place to learn Tech skills or not or whether Udemy courses are really worth it? then you have come to the right place. I have been using Udemy since last 7 years and have taken hundreds of courses and still taking to learn in-demand tech skills like AI and LLM Engineering. From my experience, I can say that, as of 2025, Udemy remains one of the world’s largest online learning platforms, hosting a vast library of courses curated by industry professionals. 

Is Coursera Plus Worth It in 2025? A Detailed Review (with 30% Discount)

Hello guys, online learning has completely transformed in the past few years. With advancements in AI, cloud, and data-driven technologies, professionals are now expected to constantly upskill to remain competitive. Traditional degrees often aren’t enough on their own, and that’s where flexible online platforms like Coursera come in. Among Coursera’s offerings, Coursera Plus has become one of the most popular subscription plans for learners who want unlimited access to top-rated courses and professional certificates. But in 2025, with so many online education options available, the question naturally arises: Is Coursera Plus still worth it?

Review — Is Codecademy Courses Worth It in 2025?

Hello guys, When it comes to learning how to code online, Codecademy has been one of the most recognized platforms for over a decade. Since its launch in 2011, it has helped millions of learners around the world get started with programming, web development, data science, and other tech-related fields. What makes Codecademy stand out is its interactive learning environment, where you don’t just watch videos but actually write code in the browser and get instant feedback.

Review – Is Baeldung’s Spring Framework and Spring Boot Courses Worth It in 2025?

Hello guys, Spring has been the backbone of enterprise Java development for years, but as the ecosystem evolves—Spring Boot 3, Reactive APIs, modern security practices—it’s easy to fall behind. If you’re a developer looking to stay cutting-edge, Baeldung’s curated and instructor-led Spring courses are among the most highly recommended. Yet, with pricing higher than general platforms, the question remains: Are they truly worth the investment in 2025?

Is Java Specialists Superpack Course by Heinz Kabutz Worth it in 2025?

Hello guys, if you’ve been a Java developer for a while, you’ve probably hit that point where you feel comfortable with the basics but start asking yourself: “What’s next? How do I go from being just good at Java to truly mastering it?” . That’s exactly where Heinz Kabutz’s Java Specialists Superpack 2025 comes in. And it’s not your average online course—it’s more like a complete university for senior Java developers, condensed into one structured, ever-expanding bundle.

Let’s break it down.

Top 10 Educative.io Courses For Python Developers in 2025 - Best of Lot

Hello guys, if you want to learn Python online and looking for best interactive courses to learn Python and related skills like Django, Flask, NumPy, Pandas etc then you have come to the right place. Earlier, I have shared best Python courses, books, websites, roadmap, and projects and in this article, I am going to share best interactive online courses to learn Python from Educative, one of the best platform for interactive coding and learning. But, Before we get to the 10 best Educative Python courses that will teach you everything you need to know about Python. let me tell you a little bit about what it really is. 

Review - Is Software Engineering at Google Book Worth Reading?

Hello guys, if you have heard about "Software Engineering at Google" book and wondering whether its worth your time and money or not then you have come to the right place. I mentioned about this book on, one of must read books for developers and in this article, I am going to provide you detailed review of this book. While most technical titles teach you how to write code. Software Engineering at Google takes a different path—it's not about syntax or algorithms, but about building software systems that endure or can survive on production. 

Bugfree.ai Review — Is Bugfree.ai Worth It for System Design Interview Prep?

Hello guys, If you’re preparing for system design interviews—especially for FAANG or top-tier tech roles—you’ve likely encountered Bugfree.ai. In the past, I have tried various online platforms to learn System Design like ByteByteGo but one thing I missed is online interactive practice, something like LeetCode where I can solve problems, get it evaluated and also get points to move up the leader board. During my search, I have recently come across this amazing platform and its the platform brands itself as “LeetCode for System Design,” offering a mix of mock interviews, structured question practice, real-time feedback, and more. 

But does it truly deliver value? Let’s break it down.

DesignGurus Review 2025 — Is DesignGurus a Good Place for Coding Interview Preparation?

Hello guys, as tech interviews get tougher, many aspiring engineers look beyond LeetCode and books for structured, pattern-driven prep. If you are one of them and looking for best coding interview resources then you have come to the right place. Earlier, I have shared best coding interview courses and books and now I will explain why DesignGurus.io is a great place to prepare for coding interviews in 2025. If you don't know, DesignGurus.io—the platform behind the now-famous Grokking series of courses. But in 2025, with so many options, is it still worth your time and money?

Let's explore what DesignGurus offers, how it stacks up, and who will benefit most from it.

Top 5 Udemy Courses to learn SnowFlake in 2025 - Best of Lot

As early as a decade ago, setting up a data warehouse meant that you had to literally purchase very expensive hardware appliances and then connect them to your data center. SnowFlake was founded in July 2012. And soon, it was goodbye to all those cumbersome machines and unnecessary expenses. I can see some of you guys wondering: wait, what exactly is SnowFlake? Don't worry. I have got your back. SnowFlake is basically a cloud-native platform that frees you to set up separate data warehouses and data lakes as well as allows you to secure data sharing across your organization. The main motto of SnowFlake is that technology should not come in the way of creativity and imagination.

Exponent Review 2025 – Is Exponent Worth It for Tech Interviews?

Hello guys, Preparing for tech interviews has become a full-time job for many software engineers, product managers, data scientists, and designers. With FAANG-level competition and new AI-driven startups raising the bar, interview prep platforms have become the go-to choice for candidates worldwide. Among them, Exponent has carved a strong niche. But is Exponent worth it in 2025? Let’s dive into what the platform offers, its strengths, weaknesses, and how it stacks up against alternatives.

Why Should You Take Udacity Courses? Is Udacity worth it?

Online learning is probably the most brilliant idea on the internet. People now can learn anything there and get valuable skills from home for a small amount of money and sometimes for free without spending that much money on college, and sometimes you don’t get real-world experience for that job, but things are changing now with likes of Google and Meta providing online courses which not only teach you in-demand skills but also give some exposure to practical work.  Many online platforms are competing to get more students enrolled in their programs and one of the best is called Udacity.

Review - Is Modern HTML & CSS From The Beginning Course by Brad Traversy on Udemy Worth it?

Hello guys, if you want to learn HTML and CSS from scratch and in depth and looking for best resources like online courses, books, tutorials, and websites then you have come to the right place. In the past, I have shared both best paid HTML courses as well as best free HTML and CSS courses and in this article, we are going to review one of the best Udemy course to learn HTML and CSS, The Modern HTML & CSS From the Beginning by none other than Brad Traversy.

Udemy Course Review - Is REST APIs with Flask and Python in 2025 Course by Teclado Worth it?

Hello guys, if you are looking for an online course to learn how to use Flask and Python to create REST API then you have come to the right place. Earlier, I have shared both best Python courses and best Flask courses and in this article, we will review one of Udemy's popular REST APIs with Flask and Python  in 2025 course by Jose Salvatierra and Teclado. Building web applications can be a challenging task when learning them from scratch but what makes them harder is that you get confused about which programming language or framework to choose for building your project. .

3 Ways to Learn React.js for web development in 2025 - Best of Lot

Hello guys, if you want to learn React.js in 2025 and looking for best way to learn React.js in quick time then you have come to the right place. Earlier, I have shared React.js Developer RoadMap as well best React courses, books, websites, and React projects for you and in this article, I am going to share what is the best way to learn React.js in quick time and also in depth. But, before that, let's find out what is React.js and why every web developer should learn React.js in 2025. According to the Stack Overflow developer’s survey, React.js surpassed jQuery to become the most popular web framework in the world. 

Top 5 Courses to Learn Apache Solr in 2025 - Best of Lot

Hello guys, if you want to learn Solr and looking for best resources like online courses then you have come to the right place. Solr is a search platform that is open-source and may be used to create search apps. It was constructed on top of Lucene (full text search engine). Solr is an enterprise-ready, fast, and scalable search engine. Solr-based apps are smart and provide excellent performance. Hadoop and Solr may work together. Solr assists us in discovering the essential information from such a vast source since Hadoop manages a large volume of data. Solr may be used for more than just searching. It can also be used to store data. 

Review - Is Coursera's Python 3 Programming Specialization Worth it in 2025?

Hello guys, In the ever-evolving realm of programming languages, Python stands as a versatile and in-demand tool, powering applications across diverse domains, from web development to data science and artificial intelligence. As aspiring programmers and seasoned developers alike seek effective ways to master Python, Coursera's Python 3 Programming Specialization emerges as a potential beacon, promising a structured and comprehensive journey through the intricacies of this powerful language. While Coursera has many great Python courses and certifications like Google's Python for IT Automation and the world famous Python for Everybody certification, this Python 3 specialization from University of Michigan is certainly worth it for its comprehensive coverage, engaging explanation and well structured content.

Top 5 Books to Learn Blockchain for Beginners in 2025 - Best of Lot

Hello guys, if you are looking for best books to learn Blockchain technology in 2025 then you have come to the right place. Earlier, I have shared best Blockchain courses, certifications, and best websites to learn Blockchain and today, I will share best books to learn Blockchain. While Online courses are easier way to learn a new technology like Blockchain they cannot replace books which is more accurate and comprehensive resource to learn Blochian in depth. I generally start with a course and then moved to reading books to learn any new technology in depth and Blockchain in no different. 

Top 5 Machine Learning Books for Beginners in 2025 - Best of Lot

Hello guys, if you want to learn Machine learning in 2025 and looking for best resources like Machine learning best books, or machine learning best courses then you have come to the right place. Earlier, I have shared machine learning best courses and best python books for Machine learning and in this article, I am going to share best books to learn Machine Learning for Beginners in 2025. Machine learning and artificial intelligence are booming fields in today's world. This industry has made humanity life’s easier by automating tasks or improving things that we always need such as translation, fraud detection in money transactions, stock prediction before you make an investment and so much stuff that you couldn’t imaging.

Why Join ByteByteGo to Learn Coding Interview Patterns in 2025?

Hello guys, Preparing for coding interviews in 2025 is more challenging than ever. With companies expecting candidates to not only solve problems quickly but also explain trade-offs, patterns, and scalability, having the right preparation resource is crucial. That’s where ByteByteGo shines. If you’ve been following interview trends, you’ll notice that top tech companies now focus less on memorization and more on how well you understand patterns of problem-solving. 

Instead of just practicing 500 random LeetCode problems, engineers are expected to recognize underlying patterns and apply them to new situations. 

ByteByteGo has designed its platform around this very idea—master the patterns, not the problems.

Top 7 Books to Learn Big Data, Hadoop and Spark in 2025 - Best of Lot

Hello guys, if you want to learn Big Data in 2025 and looking for best resources like books, online courses, tutorials, projects, and interview questions then you have come to the right place. Earlier, I have shared best Big Data courses and in this article, I am going to share best books to learn Big Data in depth. But, before we get to the 7 best books that you can read to learn everything you need to know about big data, let me tell you what it really is. Big data basically refers to a collection of data that is really huge in size and is growing exponentially over time. It is really large and complex which means that traditional data management tools cannot store and process it efficiently. You can see big data as data that is really huge in size.

Top 5 Books To Learn Cyber Security and Information Security in 2025 - Best of Lot

Hello guys, if you want to learn Cyber Security in 2025 and looking for best resources like best books and online courses then you have come to the right place. Earlier, I have shared best Cyber Security Courses, Tools, and Skills and today, I am going to share best Cyber Security books for both beginners and experienced IT professionals. You can read these books to learn important Cyber Security concepts and tools. Nowadays, cyber security is fun and increases awareness since the bad guys are attacking users' computers and other devices and other companies for stealing sensitive information and money. If you want to protect yourself from these attacks, I highly suggest taking one of these books t help you understand cyber security.

Review - Is Effective Java, 3rd Edition Still Worth it in the era of Java 24?

Hello guys, I have an interesting news to share with you today. After a long wait of almost 10 years, the Effective Java 3rd edition is finally coming this year, hopefully, December 2017. The Effective Java 2nd Edition was released in May 2008 and updated for Java SE 6, but it been, good 10 years now and there is a lot of interest from Java developers around the world for Effective Java 3rd edition after Java SE 8 release and I am very happy to inform you guys that, finally, all our wishes are granted and Effective Java 3rd edition is set to arrive this year. It will not only cover Java 9 release but also all the changes from Java 7 and Java 8.

Review - Is Fintech Certification CFTE on 101 Blockchain worth it in 2025?

The domain of fintech or financial technology has been growing at a rapid pace, with new innovations making a mark. At this point in time, the demand for a fintech certification course is increasing consistently as more professionals want to pursue their careers in fintech. Market research reports have indicated that the global fintech market could achieve a capitalization of almost $174 billion in 2025. The fintech industry has registered promising growth in terms of investment, adoption rates and a number of fintech startups. As of now, there are more than 35,000 fintech startups worldwide. On top of it, the total value of investment in fintech amounted to almost $164 billion dollars in 2022.

Top 7 Books to Learn Golang or Go in 2025 - Best o fLot

Hello guys, if you want to learn Golang in 2025, one of the trendy and rising programming language for backend development and looking for resources like online courses and books, and tutorials then you have come to the right place. Earlier, I have shared best free Golang courses, and best paid Golang courses and in this article, I am going to share best books you can read to learn Golang in depth. But, before we get to the 7 best books that will teach you everything you need to know about the Golang language, let me tell you what it really is. 

Top 7 Books to Learn Kubernetes in Depth - Best of Lot

Hello guys, if you want to learn Kubernetes and looking for resources like books, online courses, tutorials and online platforms where you can learn and practice Kubernetes then you have come to the right place. Earlier, I have shared best free Kubernetes courses as well as best Kubernetes paid courses and in this article, I am going to share best books you can read to learn Kubernetes in depth. But, before we get to the 7 best books that you can read to learn everything you need to know about Kubernetes, let me tell you what it really is. Kubernetes is basically an open-source container orchestration platform that was originally designed by Google. The main goal of Kubernetes is to automate the deployment, scaling, and management of containerized applications.

Top 20 Linux Interview Questions with Answers for 1 to 3 Years Experienced Developers

Hello guys, if you are preparing for Developer and DevOps interview and looking for Linux questions for interviews then you have come to the right place. Earlier, I have shared popular UNIX Interview questions and DevOps Interview Questions and in this article, I am going to share 20 common Linux questions from interviews with Answers. These questions covers essential Linux commands like Linux file system, permission model, Linux commands, shell and kernels etc. If you have worked in Linux then you can easily answer these questions but if you have forgot them then you can always join these best Linux courses to learn and revise key Linux concepts before interviews. 

Top 10 Coursera Courses to Learn Artificial Intelligence in 2025

Hello guys, Artificial Intelligence (AI) is no longer just a futuristic buzzword — it's an essential skill in 2025 across industries like Coding, Testing, healthcare, finance, education, and software engineering. Whether you’re a developer, business leader, student, or tech-curious professional, understanding how AI works — and how to use it responsibly — is more critical than ever. Coding tools like GitHub Copilot and ChatGPT and Claude all are getting better and better and as a Software Developer if you are not using it then you are really missing out. 

10 Example of netstat networking command in UNIX and Linux

The netstat command is one of the most essential and useful networking command for Linux users. It is a general, all purpose network information tool which can be used to find out information about current network connections, multicast group membership, routing tables, network interface statistics and many other low-level details of the host's current network configuration. The good knowledge of netstat command is not only important from the troubleshooting perspective but also from security perspective. It gives useful security related information e.g. what network ports are currently "open" on your system and the list of current network connections and their states. 

Is CodeGym Good Place to Learn Java? Is CodeGym Premium Worth it?

>Hello guys, if you are learning Java or want to learn Java but not sure if CodeGym is the right place for you or not then you have come to the right place. Earlier, I have shared best places to learn Java coding for FREE and in this article, I will review CodeGym, one of the interactive platform to learn Java. But, Before we see whether CodeGym is worth it for learning and mastering Java, let me tell you a little bit about what CodeGy really is.   CodeGym is an excellent and innovative alternative to traditional learning platforms like Udemy and Coursera. 

10 Best Python Courses and Certification on Coursera in 2025

Hello guys, Python continues to dominate the programming world in 2025 — and for good reason. From web development and data science to machine learning and automation, Python is the go-to language across industries. Whether you're a complete beginner looking to write your first line of code or a seasoned developer expanding into AI, Python remains a powerful skill with high job market demand and versatility.

Top 5 Udemy Courses to Learn Test-Driven Development in 2025 - Best of Lot

Before we get to the 5 best courses that will teach you everything you need to know about test-driven development, let me tell you a little bit more about what test-driven development really is. Test Driven Development is basically a particular approach to software development. In Test Driven Development, test cases are taken and developed to specify and validate what the code will do. Test cases are created for each functionality. If the test fails, then the code is written again in order to pass the test. This makes the code simple and free of bugs.

Top 25 Vue.js Interview Questions and Answers for Web Developers

Hello guys, if you are preparing for Vue.js interviews and looking for some frequently asked Vue.js questions from interviews then you have come to the correct place. Earlier, I have shared React.js Interview questions and JavaScript questions and in this article, I am going to share common Vue.js Interview questions for 1 to 2 years experienced web developers. With the success of libraries like React.js, developers around the globe are leaning more towards such flexible technologies. Though full-fledged frameworks like Angular are also popular and widely used, developers want flexibility.

Why Join ByteByteGo to Learn System Design in 2025?

If you’re preparing for FAANG or top-tier tech interviews in 2025, system design is one of the toughest hurdles you’ll face. It’s no longer enough to be great at data structures and algorithms — recruiters and hiring managers want to know if you can design scalable, fault-tolerant, production-level systems. That’s where ByteByteGo truly shines. Created by Alex Xu, the author of the bestselling System Design Interview series, ByteByteGo has quickly become one of the most trusted resources for mastering modern system design. It’s designed for both interview prep and real-world software architecture learning — whether you’re a junior developer looking to step up, or a senior engineer preparing for staff+ roles.

Is the Google Data Analytics Professional Certificate on Coursera Worth It in 2025? [Complete Review]

If you're planning a career pivot or just entering the world of data, you’ve likely come across the Google Data Analytics Professional Certificate on Coursera. With nearly 3 million learners enrolled, a stellar 4.8 rating from over 158,000 reviews, and a career-ready curriculum designed by Google, it’s one of the most popular data certifications available today. But the big question is: Is it still worth it in 2025?  Let’s break it down, from course content to career outcomes, skill development, and cost-efficiency,  with a practical lens from the perspective of an experienced Data Analyst.

10 Best System Design Books for Senior Software Engineer Interviews in 2025 (With Courses)

Hello guys, if you are a senior software engineering preparing for tech interviews in 2025 then you must have thought about System design interview, one of the toughest part of tech interviews. Not many people can crack it because of its open ended and vast nature, in fact, I have failed many System design interviews in the past before I cracked one.

Review - Is the Microsoft AI & ML Engineering Professional Certificate Worth It?

Hello there! If you’re looking to build a serious career in AI and ML Engineering in 2025 without burning a hole in your pocket, then you’ve landed at the right place. While many of my friends are spending thousands in AI Bootcamp, I am quietly learning on my own using online courses and certifications.  In this article, I will share one such resource, the Microsoft AI & ML Engineering Professional Certificate—available on Coursera—for those who wish to launch or advance their AI/ML careers in 2025. 

Is Introduction to Generative AI Learning Path Specialization by Google Cloud on Coursera Worth It?

Hello guys, the world of Artificial Intelligence is evolving fast — and if you're aiming to ride the wave of innovation, getting a strong foundation in Generative AI is no longer optional. Whether you're a software engineer, product manager, data scientist, or just an AI enthusiast, Google Cloud's “Introduction to Generative AI Learning Path” on Coursera offers a structured, high-quality way to start or deepen your journey. 

But the question is: Is it worth your time and investment in 2025?

Let’s break it down.

Coursera Plus Discount SALE 2025: 40% Off Now—Just $240 Instead of $360 for 12 Months!

Hello guys, If you're dreaming of advancing your career this summer—especially in the hot fields of AI, LLM Engineering, Agentic AI, Machine Learning, Deep Learning, and more—there’s no better time than now to dive in. For a limited period, Coursera Plus is available at 40% off: just $240 for 12 months (regular price $399). This offer ends July 21, 2025, so time is of the essence.

Here’s why this deal is worth your attention—and how Coursera Plus can help you build job-ready skills that stand out.

Top 10 SQL Queries from Technical Interviews to Learn Window Functions like ROW_NUMBER

Hello guys, If you're preparing for SQL interviews or working on real-world reporting tasks, mastering window functions is no longer optional. They are one of the most powerful tools in SQL which allows you to perform calculations across rows related to the current row without collapsing your result set like GROUP BY does. Window functions like ROW_NUMBER(), RANK(), LEAD(), LAG(), and SUM() OVER help you write cleaner, faster, and more expressive queries—ideal for performance tuning and analytical processing.

Let’s dive into the Top 10 SQL window function queries that you must know.

What is PriorityQueue or priority queue in Java with Example - Tutorial

PriorityQueue is an unbounded Queue implementation in Java, which is based on a priority heap. PriorityQueue allows you to keep elements in a particular order, according to their natural order or custom order defined by the Comparator interface in Java. Head of priority queue data structure will always contain the least element with respect to specified ordering. For example, in this post, we will create a PriorityQueue of Items, which are ordered based upon their price, this will allow us to process Items, starting from the lowest price. A priority queue is also very useful in implementing the Dijkstra algorithm in Java. You can use to PriorityQueue to keep unsettled nodes for processing.

What is EnumMap in Java – Example Tutorial

What is EnumMap in Java

EnumMap in Java is added on JDK  5 release along with other important features like  Autoboxing, varargs, and Generics. EnumMap is a specialized Map implementation designed and optimized for using Java Enum as key. Since enum can represent a type (like class or interface)  in Java and it can also override equals() and hashCode(), It can be used inside HashMap or any other collection but using  EnumMap brings implementation-specific benefits which are done for enum keys, In short EnumMap is optimized Map implementation exclusively for enum keys. As per Javadoc Enum is implemented using Arrays and common operations result in constant time.

How to use CopyOnWriteArraySet in Java with Example

CopyOnWriteArraySet is little brother of CopyOnWriteArrayList class. These are special purpose collection classes which was added on JDK 1.5, along with their most popular cousin ConcurrentHashMap. They are part of concurrent collection framework and reside in java.util.concurrent package. CopyOnWriteArraySet is best suited as a read-only collection whose size is small enough to copy if some mutative operation happens, for example, you can use CopyOnWriteArraySet to store objects at the start-up of the application and let multiple application thread access them during application life time. If an new condition or object comes up during that time, it can also be added into this Set, with incurring cost of creating a new array.

2 Example to Merge or Join Multiple List in Java - Tutorial

Sometimes, we need to merge multiple lists into one before performing any operation, say Iteration or transformation. It's quite common to merge two lists, or combine them into a bigger list and there are multiple ways to do it. In this article, we will take a look at two simple way to join two lists in Java, you can further extend that idea to join any number of List or it's implementation e.g. ArrayList or LinkedList in Java. One way to merge multiple lists is by using addAll() method of java.util.Collection class, which allows you to add the content of one List into another List. By using the addAll() method you can add contents from as many List as you want, it's the best way to combine multiple List.

How to Create Read Only List, Map and Set in Java? UnModifiable Collection Example

Read-only List, Map and Set in Java

A read-only List means a List where you can not perform modification operations like add, remove or set. You can only read from the List by using the get method or by using the Iterator of List, This kind of List is good for a certain requirement where parameters are final and can not be changed. In Java, you can use Collections.unModifiableList() method to create read-only List, Collections.unmodifiableSet() for creating read-only Set like read-only HashSet and similarly creating a read-only Map in Java, as shown in below example. Any modification in the read-only List will result in java.lang.UnSupportedOperationException in Java.  

Top 6 AI and Prompt Engineering Books for Software Engineers in 2025

Hello guys, AI and Large Language Models (LLMs) are transforming the software engineering landscape. While many developers use tools like ChatGPT or GitHub Copilot, understanding the engineering principles behind them is essential to stay relevant in 2025 and beyond.  While there are many resources to learn about AI Engineering, Prompt Engineering and LLM Engineering, and I have also shared online courses and roadmap, books offer structured and in-depth learning that videos and blogs often lack. They are often created by true experts and authorities who have done a lot of research in that area and that's why I always include book in my learning process.

How to use ConcurrentHashMap in Java - Example Tutorial and Working

ConcurrentHashMap in Java is introduced as an alternative of Hashtable in Java 1.5 as part of the Java concurrency package. Prior to Java 1.5 if you need a Map implementation, which can be safely used in a concurrent and multi-threaded Java program, then, you only have Hashtable or synchronized Map because HashMap is not thread-safe. With ConcurrentHashMap, now you have a better choice; because not only it can be safely used in the concurrent multi-threaded environment but also provides better performance over Hashtable and synchronizedMap.

How to use EnumSet in Java with Example

EnumSet is one of the specialized implementations of the Set interface for an enumeration type, introduced in Java 1.5 along with the enumeration type itself. Programmer often stores Enum into common collection classes e.g. HashSet or ArrayList, mostly because they are unaware of this little gem. Even I wasn't aware of this class a few years ago until I come across one of the finest books for Java programmers, Effective Java. It has an Item on EnumSet, which highlights some typical use-cases for this collection class instead of using int variable and bitwise operator. Since Enum constants are unique and have pre-defined lengths, as you can not define a new enum constant at runtime; it allows Java API designers to highly optimize EnumSet.

What is difference between Enumeration and Iterator in Java? Answer

Though both Iterator and Enumeration allows you to traverse over elements of Collections in Java, there is some significant difference between them e.g. Iterator also allows you to remove elements from the collection during traversal but Enumeration doesn't allow that, it doesn't get remove() method. Enumeration is also a legacy class and not all Collection supports it e.g. Vector supports Enumeration but ArrayList doesn't. On the other hand, Iterator is the standard class for iteration and traversal. By the way,  what is the difference between Enumeration and Iterator in Java? 

Top 11 Java ConcurrentHashMap Interview Questions with Answers [UPDATED]

The ConcurrentHashMap class part of concurrent collections package added on JDK 1.5 which contains utility classes like BlockingQueue, CopyOnWriteArrayList, CopyOnWriteArraySet etc. It is a replacement of synchronized hash-based map implementations e.g. Hashtable and synchronized HashMap. It implements Map and ConcurrentMap (a sub-interface of Map) interface which allows you to store key-value pairs. The class is similar to HashMap or Hashtable but it's more scalable and the right fit for concurrent Java application. Unlike Hashtable which achieves its thread-safety by compromising the scalability, ConcurrentHashMap uses advanced techniques e.g. dividing the map into segments to remain thread-safe and scalable at the same time.

How HashMap works in Java?

Hello guys, if you are looking for an answer of popular Java interview question, how HashMap works in Java? or How HashMap works internally in Java then you have come to the right place. In this article, I will not just answer those question but also many related questions like How get() and put() method works in Java? what role equals() and hashcode() play in HashMap, How HashMap resize itself, and why key object of HashMap should be Immutable in Java. Let's start with the basics first. HashMap in Java works on hashing principles. It is a data structure that allows us to store object and retrieve it in constant time O(1) provided we know the key. Also this is one of my most popular article with more than 6 million views and I have now updated it to include latest information like how HashMap now uses a balanced tree instead of linked list for storing collision objects and new diagrams on HashMap working which provide visual explanations. 

Difference between fail-safe vs fail-fast Iterator in Java? Example

The difference between fail-safe and fail-fast Iterator is becoming favorite core java interview questions day by day, the reason it touches concurrency a bit, and the interviewee can go deep on it to ask how fail-safe or fail-fast behavior is implemented. In this article, we will see what are fail-safe and fail-fast iterators in java and the differences between fail-fast and fail-safe iterators. The concept of the fail-safe iterator is relatively new in Java and was first introduced with Concurrent Collections in Java 5 like ConcurrentHashMap and CopyOnWriteArrayList.

Difference between List and Set in Java Collection? Example

What is the difference between List and Set in Java is a very popular Java collection interview question and an important fundamental concept to remember while using the Collections class in Java. Both List and Set are two of the most important Collection classes Java Program use along with various Map implementations. The basic feature of List and Set are abstracted in the List and Set interface in Java and then various implementations of List and Set adds specific features on top of that e.g. ArrayList in Java is a List implementation backed by Array while LinkedList is another List implementation that works like linked list data-structure.

Difference between ArrayList and Vector in Java

ArrayList and Vector are two of the most used classes on the java collection package and the difference between Vector and ArrayList is one of the most frequently asked java interview questions on first-round or phone interviews. Though it’s quite a simple question in my opinion but knowledge of when to use Vector over ArrayList or does matter if you are working on a project. In this article, we will some point-based differences between Vector and ArrayList in Java and trying to understand the concept behind those differences.