I'm for sure not an expert of OOP but i think also other monks needs to know your Perl skill before suggest some read.

Anyway the priceless free ebook ModernPerl has a chapter dedicated to OOP even iirc is alittle Moose centric.

For some introductionary threads here at perlmonks you can see

• OOP's setter/getter method - is there a way to avoid them?
• Perl Book OOPS
• kind of effort required for learning OO perl ?!

But probably the best thing is to start with official docs about OOP where you can find not 4 anymore 2 tutorials dedicated to OOP

• perlootut
• perlobj

PS as wisely suggested by choroba some tutorial has been removed from recent version of the official docs, so i strike them

L*