This anthology of writing about jazz is a mixed bag. Part II, about the 'practice of jazz', is pretty good. So is Part III, which is about post-bop developments in jazz.
Part I is mostly bad, full of postmodernist gibberish and not in the least useful, intelligent or pleasurable to read. The essay by Bruce Johnson is particularly obnoxious. There are one or two good articles each in Parts IV and V, especially the one about marketing.
If you're the kind of highbrow who thinks jazz is some kind of brain music to be appreciated sitting down, you will probably think this a good book. If you are a real music lover (or still worse, an actual musician), you will find it interesting here and there but hate most of it, just as I did.