Free Perl Books
Perl 5 by Example
Online Perl Book. 22 chapters with appendixes.
Learning Perl the Hard Way
Learning Perl the Hard Way is a free book available under the GNU Free Documentation License. This free perl ebook can be downloaded in pdf or gzipped postscript format.
Extreme Perl
Extreme Perl is a book about Extreme Programming using the programming language Perl. This free Perl ebook is available in HTML, PDF, or A4 PDF.
Perl 5 by Example
Perl 5 by Example teaches you how to use the Perl programming language by showing examples that demonstrate the concepts being discussed. The examples are designed to give you a chance to experiment-which in turn should clarify the material.
Picking Up Perl, Edition 0.12
Picking Up Perl is a freely redistributable tutorial book on Perl that can be downloaded in pdf, postscript, or textinfo format. It can also be viewed online in html format, either as one large file or as separate files for each chapter.
Beginning Perl
Very complete (and completely free) Perl Beginners book, both HTML and downloadable (PDF).
Web Client Programming with Perl
Free Online Perl Book
The Perl Reference Guide
The guide contains a concise description of all Perl 5 statements, functions, variables and lots of other useful information.
Perl Reference Guide & Perl Pocket Reference (PDF Link)
Short Perl refernce book in pdf form.
CGI Programming on the World Wide Web
This is an out of print book from 1996 that is available from Oreilly.
Beginning Perl for Bioinformatics (Sample Chapter)
GenBank (Genetic Sequence Data Bank) is a rapidly growing international repository of known genetic sequences from a variety of organisms. Its use is central to modern biology and to bioinformatics.
CGI Programming with Perl, 2nd Edition (Sample Chapter)
Security.
Advanced Perl Programming (Sample Chapter)
Chapter 1: Data References and Anonymous Storage
Programming Web Services with Perl (Sample Chapter)
One chapter on Soap.
Oreilly Sample Chapters
Quite a few sample chapters from perl books are indexed here (some have already been linked to individually).