in reply to Which non-Perl books made you a better (?:Perl )?Programmer?
The Elements of Style and the MLA Handbook -- because sometimes you need to plead your case to non-developers.
Strong ++ for Strunk and White. No matter what you're writing, it will make it better. Some of its concise, direct, no nonsense advice might even be applied to writing Perl and certainly to POD.
Original 1918 edition online here: Elements of Style.
Throwing nuclear weapons into the sun
Making everybody on Earth disappear
A threat from an alien with a mighty robot
A new technology or communications medium
Providing a magic fish to a Miss Universe
Establishing a Group mind
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