Free and paid eBooks to go deeper on the topics you're learning.
Javascript EBooks
DSA with JavaScript: 50 Questions with Detailed Explanations
by Chakrapani Upadhyaya
Master Data Structures and Algorithms with JavaScript through 50 carefully selected interview questions. Learn Big-O, arrays, hash maps, linked lists, stacks, queues, heaps, trees, graphs, searching, sorting, backtracking, dynamic programming, greedy algorithms and advanced DSA techniques with simple explanations, runnable code, real output, diagrams and interview-focused tips.
Javascript EBooks
React Interview Guide — 50 Questions with Detailed Explanations
by Chakrapani Upadhyaya
A practical React interview preparation guide covering 50 questions from beginner to advanced level, with simple explanations, complete examples, real output, diagrams, interview tips and likely follow-up questions.
Javascript EBooks
JavaScript Interview Guide — 50 Questions with Detailed Explanations
by Chakrapani Upadhyaya
A practical JavaScript interview preparation guide covering 50 frequently asked questions with detailed explanations, complete runnable examples, real output, diagrams, interview tips and follow-up questions — from core language fundamentals to asynchronous JavaScript, browser APIs, performance and security.
Generative AI
Generative AI with C#: OpenAI SDK and Gemini
by Chakrapani Upadhyaya
A practical guide for .NET developers who want to build Generative AI applications using C#. Learn LLM fundamentals, OpenAI and Gemini APIs, prompt engineering, structured outputs, function calling, embeddings, RAG, vector databases, AI agents, MCP, security, evaluation, observability, multimodal AI, voice and fine-tuning with complete C# examples.