Be sure to check out the errata for Damian's most excellent book. After I spent the time marking up my copy, the book made much more sense! There are at least 39 code improvements, many other corrections, and a few additions. Some of the fixes are quite clever! I recommend this book for learning OO.

For me the hardest part of learning OO Perl is the lack of a definitive, paradigmatic way to implement inheritance. Instead it is TIMTOWDI, so an apodeictic book is problematic. Even now that I understand inheritance, recent nodes show that I am not alone in finding it knotty.

It should work perfectly the first time! - toma