Artificial intelligence is no longer a side experiment for web developers. This beginner-friendly guide treats AI as a working part of the stack: how models learn from data, how natural language tools generate and review code, and how those pieces land in real sites and apps. Nadia Valentine walks through an AI-enhanced environment (IDEs, cloud notebooks, API keys), then prompt engineering for HTML, CSS, and JavaScript. Later chapters cover AI-assisted front ends, embedding machine-learning models, smarter backends, and features such as chatbots, search, and automation. The book closes on personalization and security at scale, deployment and monitoring, then capstone-style projects and case studies so you can show work—not just read about tools.