I also bought a huge amount of Perl books as they're basically free + postage as the supply is much higher than demand. The best one I've come across so far is

I also bought a huge amount of Perl books as they're basically free + postage as the supply is much higher than demand. The best one I've come across so far is from the guy that goes by "Ovid" (Curtis Poe). It had the right amount about the language, environment, package managers, popular libraries...etc. I liked the code as well.