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.
Bought a souvenir
Emailed all my friends about it
Got blowed up
Hit him right dead in the jaw
Made it awkward
Took a selfie
Want to go home
Results (322 votes). Check out past polls.