Dizzy: the Life and Times of John Birks Gillespie, by Donald L. Maggin (HC, 2004, $3.50)
"As one of the primary creators of the bebop and Afro-Cuban revolutions, he twice fundamentally changed the way jazz improvisation was done. And he later extended his revolutionary reach by transforming the aesthetic of big band jazz."
Look for it on the new non-fiction table.