Whilst I sometimes find Schwartz’s wit a little wearing, like “Learning Perl”, there is plenty of sound material in this book. Without it, I would have been unable to publish my first Perl module; indeed, I had to refer to the book again only yesterday to find out how to re-publish it, having found an “undocumented feature” that I wanted rid of.
Last year, I finally got my head round hashes (thanks to Schwartz again), and now just can’t stop using ’em. My next challenge is to start writing my own OO Perl; Schwartz states that it’s probably wasted on applications with less than 1,000 lines (I’ve been up in the 900s, but have never hit the big “k“). However, everyone else seems to be using it and on the basis that there’s no such thing as truly useless knowledge, I am about to spend most of the rest of the day working through Chapter 8; whether this is wise when I have a right ding-dong of a headache is another matter entirely.
As you can see, I have provided a link so that you can look at/purchase this book through Amazon. Disclosure: I am a member of the Amazon Associates programme and therefore stand to benefit from such sales.