Some personal favorites:
Hear Me Talkin' to Ya - Shapiro and Hentoff
Selections from the Gutter - Oral histories, interviews, and essays from Art Hodes' and Dale Curran's The Jazz Record magazine
Bud Freeman: You Don't Look Like a Musician and Bill Crow: From Birdland to Broadway - Anecdotes and stories from two well known musicians
Don Asher: Notes from a Battered Grand A journeyman musician (and co-author of Hampton Hawes' autobiography - another book worth reading) tells the story of his musical life.
Sidney Bechet: Treat It Gentle - The best jazz autobiography I've read.
George E. Lewis: A Power Stronger than Itself - The history of the AACM. Perhaps not the most deftly written book, but the information and detail are priceless.
A.B. Spellman: Four Lives in the Bebop Business - Cecil, Ornette, Herbie Nichols, and Jackie McLean - I first read this when it was published in 1966, and it holds up today.
Milt Hinton: Bass Line - Photographs and stories from a man who lived through most of the lifetime of jazz
Roy de Carava: The Sound I Saw - A master photographer looks at the music
Jean-Jacques Sempe: The Musicians - Wonderful drawings that capture the spirit and humanity of musicians
The Hearing Eye: Jazz and Blues Influences in African American Visual Art - Edited by Graham Lock and David Murray (not the musician David Murray) - At the beginning of the introduction of this book, Charlie Parker is quoted as saying: "Hear with your eyes and see with your ears." I don't know if Charlie Parker actually said that, but this book attempts to do just that and imo succeeds.
And two books that I haven't yet read but look forward to reading:
Louis Armstrong in His Own Words and Donald Clark's biography of Billie Holiday: Wishing on the Moon