On the Amazon site in the UK, the Los Angeles Times quote is identified as being by Leonard Feather:  
"The most devastating, provocative, and enlightening work of its kind ever contributed to the annals of jazz literature." 
 
Feather, as we know, had a habit of settling scores; but not here. Perhaps it would have seemed too absurd. 
 
As some restitution, before the comment is removed, I've voted against its  usefulness on the Amazon.com site (it reads like one of HB's efforts); thankfully it has not spread to the UK version. It would be unethical to suggest that anyone else does the same...