Well, that's a vague question. I have the Red Baron's, Manfred von Richthofen's, short autobiography.

It's available online, however, as it's now in the public domain, so it's 100% legal to download and distribute it. And the same goes for some more books, for example Flying Fury: Five Years in the Royal Flying Corps by James McCudden (57 kills).

Since you aren't asking a specific question, the best piece of advice I can give you is to google around for autobiographies and check if they provide the details you're interested in.