Honestly the best source is O'Reilly. They are no-fail. Check out their "Learning Perl" book. It is pure Gold. O'Reilly is infamous for their tech books. When they don't know a certain section they go straight to the source. The forward is by Larry "The Man" Wall for Learning PERL. It's about 30.00 dollars, and has a Camel on the front.
The beatings will continue until morale raises.