I bought a copy of Object Oriented Perl about a week ago and have
been working my way through it ever since. I find it much easier to learn
things from than Programming Perl (I remember reading the section on
objects in PP at least a dozen times before I understood it) as well as
being well-written and fairly concise.
It's a small shame the first two chapters are used up explaining perl and
OO, and chapter 3 is something of a no-brainer if you've used perl objects
before, but from there on in it's pretty much all news. The sections on
tie and overloaded operators are espescially good.
I felt the content ramped up fairly quickly (I still don't understand the
last three chapters) but builds in a logical manner, making it easy reading.
The Quick Reference Guide (Appendix A) is good, but I found Appendix B less
useful. (Any book whose index has an entry for Real World wins *my*