I don't actually *have* it :), but Damian Conway's Object Oriented Perl is supposedly excellent. It's a Manning book, as is Andrew Johnson's Elements of Programming with Perl, which is also supposed to be quite good.

I've also read good reviews of Nigel Chapman's Perl: The Programmer's Companion and Joseph N. Hall and Randal Schwartz's Effective Perl Programming (the site also has Perl Recipes).