Berube D. Practical Ruby Gems

Apress, 2007. — 288 p. — ISBN-13 978-1-59059-811-5.Practical Ruby Gems is a comprehensive guide to utilizing and creating Ruby Gems-ready-made Ruby code modules that can be easily added to Ruby and Rails projects. This book is ideal for Ruby programmers as well as web developers who use Rails and wish to extend the functionality of their projects.You'll get a prime selection of 34 of the best and most useful Gems, which make up the core of this book. Each of these also comes complete with actual use cases and code examples that you can use immediately in your projects.Using RubyGems.
Using Particular Gems.
Creating Gems.