Randal L. Schwartz, Brian D Foy, Tom Phoenix 

Get a clear roadmap for improving your skills with Intermediate Perl, and gain working knowledge of Perl's objects, references, and modules-ingredients that make the language so versatile and effective. Written by the authors of the bestselling Llama book, Learning Perl, and updated for Perl 5.14, this book offers a gentle but thorough introduction to intermediate programming in Perl. Each chapter is small enough to be read in just an hour or two, ending with a series of exercises to help you practice what you've learned. If you're familiar with the material in Learning Perl and have the ambition learn more, this book will take you much further into Perl's capabilities. Topics include: * Packages and namespaces * References and scoping, including regular expression references * Manipulating complex data structures * Object-oriented programming * Writing and using modules * Testing Perl code * Contributing to CPAN