ISBN 0-596-00132-0 [3rd edition July 2001]
http://www.oreilly.com/catalog/lperl3/
+And for more advanced information on writing larger programs,
+presented in the same style as the Llama book, continue your education
+with the Alpaca book:
+
+ Learning Perl Objects, References, and Modules (the "Alpaca Book")
+ by Randal L. Schwartz, with Tom Phoenix (foreword by Damian Conway)
+ ISBN 0-596-00478-8 [1st edition June 2003]
+ http://www.oreilly.com/catalog/lrnperlorm/
+
If you're not an accidental programmer, but a more serious and
possibly even degreed computer scientist who doesn't need as much
hand-holding as we try to provide in the Llama, please check out the
ISBN 0-596-00132-0 [3rd edition July 2001]
http://www.oreilly.com/catalog/lperl3/
+ Learning Perl Objects, References, and Modules
+ by Randal L. Schwartz, with Tom Phoenix (foreword by Damian Conway)
+ ISBN 0-596-00478-8 [1st edition June 2003]
+ http://www.oreilly.com/catalog/lrnperlorm/
+
Learning Perl on Win32 Systems
by Randal L. Schwartz, Erik Olson, and Tom Christiansen,
with foreword by Larry Wall