3 from o'reilly:
Programming Perl 3ed
Perl cookbook
Learning Perl (though now pretty outdated)
There's also Elements of Programming With Perl by Andrew Johnson which I've never seen but have heard great things about on c.l.p.m, and Beginning Perl by Simon Cozens, also which I haven't really looked at, but had a quick flip through and it looked good. Plus, I read an article of his in which he talked about what makes a good perl book and I agreed with him on everything. so if he stayed true to that, it will be a good book.,
--mark
