Written by Yukihiro Matsumoto ("Matz"), creator of the language, Ruby in a Nutshell is a practical reference guide covering everything from Ruby syntax to the specifications of its standard class libraries. The book is based on Ruby 1.6, and is applicable to development versions 1.7 and the next planned stable version 1.8. As part of the successful "in a Nutshell" series of books from O'Reilly & Associates, Ruby in a Nutshell is for readers who want a single desktop reference for all their needs.