When i first started using Perl perldoc want real useful to me becaue for the most part i didnt know what functions were out there. Personally I started out really learning perl when i got my hands on Learning Perl
Thats where i started to learn how to use perl to solve problems. Then i was able to move onto Programming Perl
around this time Perldoc beacme real useful for looking up specific syntax and such. The one thing that those bok and perldoc hasnt given me that i found here was a place to see problems hashed out beyond just getting something to work. For me some of the most intresting nodes are the ones where someone posts a question and thier take on it and in the process the other memebers here end up reworking the whole logic and approach to the problem. you can't really find that in any book.