While some large training companies offer their own courses on Perl, you
may prefer to contact individuals near and dear to the heart of Perl
development. Two well-known members of the Perl development team who offer
such things are Tom Christiansen and
Randal Schwartz ,
plus their respective minions, who offer a variety of professional
tutorials and seminars on Perl. These courses include large public
seminars, private corporate training, and fly-ins to Colorado and Oregon.
See http://www.perl.com/perl/info/training.html
for more details.