Perl Core Documentation
Online Documentation
- Perldoc - contains a searchable index for the core perl documentation.
- French version of the Perl Manual - a bit out-of-date, but still very pertinent for beginners.
Books
Programming Perl, 3rd Edition
The Bible of Perl. Makes an easier and more organized read than the online core documentation, and provides explanation for every last nuance of the Perl language. Also contains a lot of jokes and Perl musings, and an introduction to the culture behind Perl.
Not recommended as an introductory Perl book, but still makes a very good read after the language is learned to a working extent.
The Perl Cookbook
A book that contains a long list of code snippets for achieving certain tasks in Perl, with some discussion on how they work and how to customize them.