Elijah Wald has written at least two great biogs

One of Josh White - absolutely and utterly brilliant - don't miss it.
He has also edited the reminisences of Dave Van Ronk

there is another book about Robert Johnson, by him.

there is a classic book about Django Rheinhrdt - by somebody whom I've forgotten, but which I felt was a little unsympatheic (Alain....?)

Alan Lomax wrote a great book called Mr Jelly Roll about jelly Roll Morton

Eddie Condon - great jazz rythm guitarist wrote a very enjoyable auto biography WE CALLED IT MUSIC - he knew everybody Bix, fats waller, etc.

julian Cope has written two autobiographies of what it was like to be in the thick of it in the early eighties music scene

Sam Charters book The Country Blues is a classic - but you need the record to go with it

shout of course - great inside book about the Beatles - Philip Norman

Lenny Bruce wrote an autobiography, which could have been great because he hung out with some great jazzmen - but was it Grossman - who wrote Ladies and Gentlemen I give you Lenny Bruce - it was my bible when I first started performing - tells you how much courage you need to be a showbiz footsoldier. the same guy wrote one about Elvis - but he had none of the same affection for him.

i thought the best one about Elvis was that one wrote by his four bodyguards just before the poor chap snuffed it.