Programming Perl: 
Adopted as the undisputed Perl bible soon after the first edition appeared in 1991, Programming Perl is still the go-to guide for this highly practical language. In this much-anticipated update to “the Camel,” three renowned Perl authors cover the language up to its current version, Perl 5.14, with a preview of features in the upcoming 5.16.
From the TOC:
- Chapter 23: Plain Old Documentation