Programming Cocoa with Ruby
Programming Cocoa with Ruby brings together two enthusiastic development communities. Ruby programmers will tell you how productive they are with just the right amount of code. Cocoa developers know the importance of a clean, intuitive interface.

Now, through Programming Cocoa with Ruby, the joy of Cocoa meets the joy of Ruby. more »
Programming Ruby 1.9, 3rd Edition
Ruby is the fastest growing and most exciting dynamic language out there. If you need to get working programs delivered fast, you should add Ruby to your toolbox.

This book is the only complete reference for Ruby 1.9, the very latest version of Ruby. (If you are still using Ruby 1.8, you'll want to check out the original PickAxe.) more »
Programming Ruby, 2nd Edition
The Pickaxe book, named for the tool on the cover, is the definitive reference to Ruby, a highly-regarded, fully object-oriented programming language. This Second Edition has more than 200 pages of new content, and substantial enhancements to the original, covering all the new and improved language features of Ruby 1.8 and standard library modules. more »
Prototype and script.aculo.us
Tired of getting swamped in the nitty-gritty of cross-browser, Web 2.0-grade JavaScript? Get back in the game with Prototype and script.aculo.us, two extremely popular JavaScript libraries, that make it a walk in the park. Be it AJAX, drag and drop, auto-completion, advanced visual effects, or many other great features, all you need is to write one or two lines of script that look so good they could almost pass for Ruby code! more »
Rails for .NET Developers
Rails for .NET Developers introduces the joy of Ruby on Rails development to Microsoft .NET developers. This book demonstrates the essential elements of both the Ruby language and the Rails application framework, geared especially for developers already fluent in the Microsoft .NET platform. more »
Rails for PHP Developers
Are you a PHP developer interested in the Ruby on Rails framework? Rails for PHP Developers kick-starts your Rails experience by guiding you through learning both Ruby and Rails from a PHP developer's perspective. Written by developers with deep experience using PHP, Ruby, and Rails, this book leverages your existing knowledge of PHP to learn Rails application development quickly and effectively. more »
Release It!
Whether it's in Java, .NET, or Ruby on Rails, getting your application ready to ship is only half the battle. Did you design your system to survive a sudden rush of visitors from Digg or Slashdot? Or an influx of real world customers from 100 different countries? Are you ready for a world filled with flakey networks, tangled databases, and impatient users?

If you are a developer and don't want to be on call at 3AM for the rest of your life, this book will help you. more »
Scripted GUI Testing with Ruby
If you need to automatically test a user interface, this book is for you. Whether it's Windows, a Java platform (including Mac, Linux, and others) or a web app, you'll see how to test it reliably and repeatably.

Many automated test frameworks promise the world and deliver nothing but headaches. Fortunately, you've got a secret weapon: Ruby. Ruby lets you build up a solution to fit your problem, rather than forcing your problem to fit into someone else's idea of testing.

This book is for people who want to get their hands dirty on examples from the real world and who know that testing can be a joy when the tools don't get in the way. It starts with the mechanics of simulating button pushes and keystrokes, and builds up to writing clear code, organizing tests, and beyond. more »
The RSpec Book
Behaviour-Driven Development (BDD) gives you the best of Test Driven Development, Domain Driven Design, and Acceptance Test Driven Planning techniques, so you can create better software with self-documenting, executable tests that bring users and developers together with a common language.

Get the most out of BDD in Ruby with The RSpec Book, written by the lead developer of RSpec, David Chelimsky. more »
Using JRuby
Now you can bring the best of Ruby into the world of Java, with Using JRuby. Come to the source for the JRuby core team's insights and insider tips. You'll learn how to call Java objects seamlessly from Ruby, and deal with Java idioms such as interfaces and overloaded functions. Run Ruby code from Java, and make a Java program scriptable in Ruby. See how to compile Ruby into .class files that are callable from Java, Scala, Clojure, or any other JVM language. more »