If you don't have the Kenny Gaham and his Satellites' Moondog and Suncat Suites get it, Johnny Trunk reissued it several years ago.
Other than that, I didn't usually find the deeper excavation of his work rewarding. The first things that came out were really the best.
I read Barry Cleveland's book many years ago and was kinda disappointed. It wasn't nearly as technical as I expected, and much heavier on biographical filler.
― Deflatormouse, Saturday, 21 March 2020 20:14 (four years ago) link