Well, I just have a few extra bucks to burn; and was thinking that is time to improve my Perl bibliography with some enlightening lectures. If Perl6 can do the same in less characters and with less pitfalls (I tend to happily fall in each hole, plunk) it has all my attention.

I'll appreciate your experience about some must-have Perl books that changed your point of view of the language. My main focus is applications for scientific word. I'm not so much interested in creating webpages or so. Just want to mega-boost my skills, faster, and the more simpler and straight way, the better.