GenAI Handbook is a guide designed to help learners grasp the key concepts of modern artificial intelligence systems. Written by William Brown, it aims to curate and organize high-quality explanatory resources found across the internet into a textbook-style presentation, serving as a roadmap for individuals to achieve their AI-related learning goals. This handbook caters to individuals with a technical background, whether driven by curiosity or potential career development, allowing them to explore the latest innovations in artificial intelligence.