MacRuby: The Definitive Guide
by Matt Aimonetti
Publisher: O'Reilly Media 2010
MacRuby is Apple's implementation of the Ruby programming Language which uses the well known and proven Objective-C runtime. This book is an introduction to MacRuby. Topics covered: Introduction, The Cocoa Environment, Foundation, Application Kit, Core Data, Xcode.
Home page url
Download or read it online for free here:
by Gregory T. Brown - O'Reilly Media
Ruby Best Practices aims to help Ruby developers from a wide range of skill levels improve their fundamental understanding of the language via exposure to the common practices and idioms that many seasoned Rubyists take for granted.
by Huw Collingbourne - Dark Neon Ltd.
A straightforward introduction to the fundamentals of Ruby programming: strings, numbers, objects, methods, class hierarchies, arrays, iterators, hashes, modules, mixins and much more. Small, self-contained programming samples are included.
RubyGems is the premier ruby packaging system. It provides: A standard format for distributing Ruby programs and libraries; An tool for managing the installation of gem packages; A gem server utility for serving gems from any machine...
by Minero Aoki
The RHG is a book that explains how the ruby interpreter (the official C implementation of the Ruby language) works internally. To fully understand it, you need a good knowledge of C and Ruby. This book is going to investigate ruby as a whole.