RAG Explained (Beginner's Guide 2026)

RAG Explained is a free beginner-friendly guide that teaches how Retrieval-Augmented Generation (RAG) works in modern AI. It covers the complete workflow, real-world examples, Python and JavaScript code snippets, RAG vs Fine-Tuning, RAG vs MCP, benefits, and practical use cases. Whether you're a student, developer, or AI enthusiast, this guide makes one of today's most important AI concepts easy to understand.