Written by Yukihiro Matsumoto ("Matz"), creator of the language, 'Ruby In A Nutshell, Second Edition' is a practical reference guide covering everything from Ruby syntax to the specifications of its standard class libraries. The book has been updated to cover Ruby 1.8. As part of the successful "in a Nutshell" series of books from O'Reilly Media, Ruby in a Nutshell is for readers who want a single desktop reference for all their programming needs.