Big Fat Rails
by Mitch Guthrie
Publisher: bigfatrails.com 2012
Number of pages: 53
Big Fat Rails is a book designed around teaching Ruby on Rails in a precept upon precept fashion. Learning a little at a time and building in complexity as the book moves forward. Both theory and practice driving your knowledge. If you are a beginner and looking to learn Ruby on Rails, the purpose of this book is to simply get you there in small, manageable steps.
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by Bruno R. Preiss
The primary goal of this book is to promote object-oriented design using Ruby and to illustrate the use of the emerging object-oriented design patterns. The book shows how these patterns are used to create good software designs.
This book is a great collection of ideas, tricks, and skills that could be useful for Hackers. It's a unique extraction reference, summarizes a lot of research and experience. Rubyfu is a book to use not only to read, it's where ruby goes evil.
by Mark Slagell
Ruby is an easy object oriented language: it is designed to be easily read and written. This User's Guide will get you started at invoking and using ruby, and give you insights into ruby's nature that you may not get from the reference manual.
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.