I've been tattoed to Perl since it was offered as a special problems course in college 4yrs ago (I'm glad I took it, nice vacation from c++). The book used was to "teach yourself Perl in 21 days".

Since then I have most of the Perl stable.

learning Perl
programming Perl
learning Perl on win32 systems
Perl for system administration
mastering Perl expressions
Perl cookbook
network programming with Perl
data munging with Perl
win32 Perl scripting

Thanks, Larry, Damian, Tom, Randal, and all the others.