Noting this now cause it’s timely: O’Reilly is selling Perl ebooks at 50% off until the 9th, with the code WKPER5. (seen here)
Its worth noting that books like Learning Perl, Intermediate Perl, and Programming Perl are editions either 2012 or 2011.
Also, the classic “Higher Order Perl” is available for free on the authors website – http://hop.perl.plover.com/
I’ve got a great PearTK book.
DragonFly BSD Digest