Learning Perl and CGI

I'd consider myself a PHP guru. I'm slowly taking up python as well. Now, I need to learn Perl & CGI to edit and continue working on some web applications which are about to be assigned to me.

I bought PeachPit's "Perl and CGI for the World Wide Web" by Elizabeth Castro, but that basically defines the types of variables, shows how a param function works (barely) and that's it. The book ends. Most definitely a waste of money. Yet, there's almost no other books on perl / CGI that I can find to purcahse.

So my question to you guys here at /prog/ is, how do I learned Perl and CGI for use in web applications?

didn't you hear?

Python is the new Perl