Yes, for what it worth, I've been recommending this book to folks for 3 reasons; you learn more perl, more OOProgramming and more OOPerl than any other book I've read since, well, since the first Camel. Manning publications has a link to Dr. Conway's OOP forum (you need to have the book to get in) where he answers OOPerl and questions about the book on a regular basis.
Its the sort of book you can finish and then start again to try and get the next level of understanding out of it.