in reply to Perl Object Oriented Meta-Tutorial
brian d foy says about the Intermediate Perl: "It's updated and has more stuff."
See http://www.amazon.com/Intermediate-Perl-Randal-L-Schwartz/dp/1449393098/ref=pd_sim_b_7
This gentle but thorough guide introduces you to modules, complex data structures, and object-oriented programming.
Enough codes make shapes.
In Section
Tutorials