The book will cover Rails 2.0. Major chapters or sections will cover topics such as models, views, controllers, plug-ins, deploying with Capistrano, testing a Rails application, and using Prototype and Scriptaculous. The application developed in the walk-through chapters is a Web 2.0 application that can be used by a group of users to share information about a collection of books. It will include implementation of features such as content tagging, reviews, and ratings.