MacRuby In Action, a new book that teaches Ruby developers how to code OS X applications in Ruby, was released this week through Manning Publications. Jerry Cheung, a senior engineer at Intridea authored the book alongside Brendan Lim and Jeremy McAnally.

In the book you'll explore key Cocoa design patterns, along with a few twists that MacRuby makes possible. You'll also pick up high-value techniques including system scripting, automated testing practices, and getting your apps ready for the Mac App Store. It was written for Rubyists. No experience with Cocoa, Objective-C, or Mac OS X is required!