Allowing users to quickly and easily build powerful Web applications, Ruby on Rails (RoR) continues to grow in popularity among developers thanks to its ease of use and speed. This book examines how RoR uses less code for application development by avoiding redundancy and encouraging increased performance that boasts less development time. It includes in-depth coverage of the RoR framework, and follows the development of a complete RoR Web application that uses various features of RoR that are taught earlier in the book. It addresses the latest trends such as Agile development, Web Services, Web 2.0, and Ajax from an RoR perspective.