'Beginning Ruby' is a thoroughly contemporary guide for every type of reader wanting to learn Ruby, from novice programmers to web developers to Ruby newcomers. It starts by explaining the principles behind object- oriented programming and within a few chapters builds toward creating a genuine Ruby application. The book then explains key Ruby principles, such as classes and objects; projects, modules, and libraries; and other aspects of Ruby such as database access. In addition, Ruby on Rails is covered in depth, and the book's appendixes provide essential reference information as well as a primer for experienced programmers.