Perl 5 Internals
by Simon Cozens
Publisher: NetThink 2001
This is a three-hour course which provides a hands-on introduction to how the perl interpreter works internally, how to go about testing and fixing bugs in the interpreter, and what the internals are likely to look like in the future of Perl, Perl 6.
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by Jonathan S. Duff, et al.
This book is primarily for people who want to learn Perl 6. It teaches the basics from a Perl 6 perspective, touching on variable interpolation, datastructure use, object construction, threads, closures, symbol tables, and other core features.
by Greg London - Lulu.com
This document is for people who either want to learn perl or are already programming in perl and just don't have the patience to scrounge for information. This is also a handy desk reference for some of the more common perl related questions.
by Chris Radcliff - New Riders Press
Introduces the tools needed to design a dynamic website using Perl programming language. It covers templates, integration, load testing, the need for speed, document management, persistent Perl, good coding style, fas database access and more.
by A. D. Marshall - Cardiff School of Computer Science
Introduction to Perl: variables, arrays, operators, statements, functions, references, input and output, regular expressions, reports, special variables, handling errors and signals, objects, modules, debugging, command-line options, etc.