MacRuby in Action is a tutorial for Ruby developers who want to code for Mac OS X without learning Objective-C. You'll learn the ins and outs of the MacRuby language, including straightforward examples of creating OS X applications using Cocoa components. MacRuby in Action teaches Ruby developers how to code OS X applications in Ruby. 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. Written for Rubyists. No experience with Cocoa, Objective-C, or Mac OS X required.