While I have not read this book, I did read most of Head First Design Patterns in the same O'Reilly series. There are likely many good ideas in it. But, much translation will also be required to make it applicable to Perl. Books like this usually focus on what I call OOO languages (Object-Oriented Only). These languages do not support (or programmers are discouraged from using) things like code references.

Perl has more freedom than Java. Therefore, books like this are more useful at listing the problems which need solving than they are at suggesting solutions to them for Perl programmers.

I owe a debt of thanks to OO design instructors who taught me to spot and solve common problems in Java. But, I had to augment their advice with a good deal of thought about the proper Perl tools for solving those problems. The solutions are rarely similar in implementation detail to the ones I was taught. Dare I coin a new term (which started as a sort of Freudian typo) and call these the 'properl' solutions, probably not.

Phil