I was just looking up information on Daniel Defoe's story King of Pirates, based on the exploits of Captain Avery, which I have just finished (it's very good by the way), and I found this list, compiled by the good people at the Guardian for all your pirating needs:

books.guardian.co.uk/review/...,00.html

On a note of caution: I have to take issue with the reviewers interpretation of the King of Pirates:

'Defoe's brisk little novella was rush-released in 1719 to capitalise on the success of Robinson Crusoe. It has claims to being the first adventure story in the language - though precisely which language is interesting to conjecture, as Defoe's salty cocktail of 18th-century archaism and seafaring slang produces such bizarre formulations as: "These big words amazed the fellows and answered my end to a tittle; for they told such rodomontading stories of us when they came back to their ships." The narrative purports to be a first-person character defence penned by the notorious buccaneer Captain Avery, in response to certain slanderous reports that have tarred his name, though he succeeds in painting himself a good deal blacker. Defoe adopts the old rogue as a mouthpiece for an entertaining polemic on the legitimacy of empire: "The Romans themselves were, at first, no better than a gang of rovers - and who knew but Captain Avery might lay the foundation of as great an empire as they?" Good point.'

First off, I'm not sure that Avery does end up blackening his own character. The complaint Defoe's Avery has with the stories told about him is basically that he raped a Mogul's daughter when he was plundering her ship. In the story that doesn't happen. Defoe's Avery takes great relish in acknowledging that he is a thief, although he seems to shy away from the fact he killed people, and the implications of this. So, the review is factually inaccurate.

Second, to call the book a commentary on Imperialism because of the comment about the Roman Empire is stretching the point enormously. I would say that it reads more like characterisation: Avery being pleased to consider himself in a long line of pirates and privateers. He makes this comment when he is trying to persuade some English sailors that he has a great fort manned by thousands of pirates to scare them and others off attempting to attack them.

That said, I haven't read any of the other books, but notwishstanding the reviewers maybe not being very good, it is an interesting starting point if you really do want a list of pirate reading...