Closure

None of the JavaScript libraries today has a more impressive track record than Google Closure, the tool suite used for Gmail, Google Docs, and Google Maps. Closure: The Definitive Guide has precisely what you need to get started with these tools, including valuable information not available publicly anywhere else. Written by Michael Bolin -- a former Google engineer who made many contributions to Closure -- this guide explains the library's design and offers code examples that illustrate best practices. You'll also learn how to minify your JavaScript code with the compiler, and learn why the combination of the library and the compiler is what sets this toolkit apart from other JavaScript libraries.