I'm familiar with it, yeah, but it's pretty different from the kind of thing I want to do.

I want to write something that teaches good OO design (when to use roles, when to use inheritance, when to use delegation, etc) and just happens to use Perl for its examples. His is more focused on the mechanics of OO in Perl. Like he has about 2˝ chapters on bless and the different types of references it can be applied to, whereas I only plan to mention bless in passing.

It is also about 20 years old, so doesn't even mention stuff like Moose.

I want to write a book that a Python, Ruby, or Java programmer can read and learn from, and take away valuable advice even if they don't learn any more Perl than is necessary to grok the examples. (Though hopefully the examples will be beautiful and elegant enough that they are tempted to learn a bit more about Perl.)

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