Learn to build web applications with Catalyst, the popular open source web framework based on the Perl programming language. The Definitive Guide to Catalyst: Writing Extendable, Scalable, and Maintainable Perl-Based Web Applications is a definitive guide to Catalyst version 5.8, which will be released in 2009. The primary audience for this book is existing Perl programmers who want more information on writing robust maintainable and extendable web applications.