Bestselling author David Flanagan teams up with Ruby creator Yukihiro "Matz" Matsumoto and writer/cartoonist/programmer why the lucky stiff to bring you the authoritative guide to Ruby. Covering versions 1.9 and 1.8, this book helps you learn Ruby's lexical structure, primary expressions, conditionals, syntax, classes, the data it manipulates, and more. For experienced programmers who want to look at this language in depth, this guide is invaluable.
