For the record, "Learning Perl Objects, References & Modules" was re-written and renamed "Intermediate Perl", and even that is now in its 2nd edition. All three versions are "the Alpaca book", but the most recent is really the best one to be working with right now. If I recall, the original never touched on testing, which is introduced in Intermediate Perl, for example.

And yes, I do endorse the book as well (especially in its most current edition). I think the beginner's trilogy should probably be Learning Perl, Intermediate Perl, and Modern Perl.