lately, I found this one excellent:
(and based on it, would try his "History of Jazz" over Dyer, for whom I've not much use it seems)
also, this one was pretty nice, if not containing much that was unexpected:
then, I'm halfway through this and it's excellent:
also right now reading this, and it's most thought-provoking indeed:
then, the book that definitely moved me most in quite some time - not about jazz, but I think of plenty of relevance still:
Kelley's book on Monk sets the standard, I guess. I've read some chapters in it and found it excellent. Guess Peter Pullman's book on Bud Powell is even more thorough, but I hate reading on the smartphone and am proceeding very slowly (international shipping asked is ridiculous, no way I'll pay 50$ for a paperback).
for the German-reading crowd, I warmly recommend this one:
Also, if you want to dig deeper into Bebop, Ira Gitler's two books (Masters and Swing to Bop) are excellent.
And then there's Charles Mingus' great "Beneath the Underdog" ...