I picked up a copy of the 'Central Avenue Sounds' book from the Borders in Long Beach many years ago now, just after many of the musicians featured had appeared at the store (unfortunately I just missed the in-person signing - Jackie Kelso, Clora Bryant, Gerald Wilson, Buddy Collette). Was able to pick up one of the signed copies they left behind though (although it doesn't have Gerald's signature). A good read !
Also got hold of the Buddy Collette book - amazingly at half-price clearance sale at a store here in the UK.
The Horace Tapscott biography is also a must-have.