This book not only teaches the necessary skill set to become a proficient Ruby on Rails developer, it also explains the theory needed for the developer to explore and learn on their own. The reader will not be burdened by yet another set of "hello world" and other mundane examples. In this text they will learn Ruby on Rails by creating real world projects; a task manager, RSS aggregator, a community manager similar to MySpace.com, and an Amazon based store. While the book covers the basics for beginners, it also offers more advanced tools, including Ajax and a detailed discussion of ActiveRecord and ActionPack.