=item I<Programming Perl> (the "Camel Book"):
- by Larry Wall, Tom Christiansen, and Jon Orwant
- ISBN 978-0-596-00027-1 [3rd edition July 2000]
- http://oreilly.com/catalog/9780596000271/
+ by Tom Christiansen, brian d foy, Larry Wall with Jon Orwant
+ ISBN 978-0-596-00492-7 [4th edition February 2012]
+ ISBN 978-1-4493-9890-3 [ebook]
+ http://oreilly.com/catalog/9780596004927
=back
=item I<Learning Perl> (the "Llama Book")
by Randal L. Schwartz, Tom Phoenix, and brian d foy
- ISBN 978-0-596-52011-3 [5th edition June 2008]
- http://oreilly.com/catalog/9780596520113
+ ISBN 978-1-4493-0358-7 [6th edition June 2011]
+ http://oreilly.com/catalog/0636920018452
=back
by Randal L. Schwartz and brian d foy, with Tom Phoenix
foreword by Damian Conway
- ISBN 978-0-596-00478-1 [1st edition March 2006]
- http://oreilly.com/catalog/9780596004781/
+ ISBN 978-1-4493-9309-0 [2nd edition August 2012]
+ http://oreilly.com/catalog/0636920012689/
=back
=item I<Perl 5 Pocket Reference>
by Johan Vromans
- ISBN 978-0-596-00374-6 [4th edition July 2002]
- http://oreilly.com/catalog/9780596003746/
+ ISBN 978-1-4493-0370-9 [5th edition July 2011]
+ ISBN 978-1-4493-0813-1 [ebook]
+ http://oreilly.com/catalog/0636920018476/
=item I<Perl Debugger Pocket Reference>