I'm reading Effective Perl Programming by Hall and Schwartz. You should too.
In the introduction, the author says something profound. Essentially, he says "You don't learn to be a good english author by reading dick and jane, then the dictionary - you need to pick up style and skill. Neither should you learn to write with just the Llama ("Learning Perl") and the Camel ("Programming Perl.")"
And he's right (no pun intended). If you want to take your perl to the next level, I would suggest the PORM (Learning Perl Object, References, and Modules), then Effective Perl. It's good stuff, but it's a bit deep. It's rather old (1996), but, aside from the bit on automated testing, it doesn't feel dated.
