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Free Perl Books

Practical mod_perl
This free perl book is available in html or pdf versions, so you can view the perl book online or download this free book.

Perl 5 by Example
Online Perl Book. 22 chapters with appendixes.

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.

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.

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.

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)
Two chapters on Soap.

Oreilly Sample Chapters
Quite a few sample excerpts from perl books are here.