In this book Andrew Dupont, JavaScript expert and one of the Prototype Core team members details how to get the most out of using Prototype and script.aculo.us, which are among the most popular and best-supported JavaScript libraries. This book is an essential guide for any JavaScript developer wanting to quickly and effectively learn every major facet of Prototype/script.aculo.us. It will help readers master all the convenience functions of Prototype to speed JavaScript/Ajax development and leverage script.aculo.us to turbo charge their dynamic UIs. The author avoids needless theory and rhetoric throughout the book, moving readers through the topics at a fast pace. He incorporates several real-world examples to provide valuable practical experience.