Enjoyable if inessential
Having read many biographies of David Bowie; a Kinks biography; a Nick Drake biography; and numerous Mojo magazine articles on Pink Floyd, Syd Barrett, Peter Green, and The Who, I came to this book reasonably well informed about the artists under discussion.
Clinton Heylin links these artists in terms of their relationship with mental illness. It's a reasonable enough jumping off point for an exploration into their key works.
Clinton Heylin is opinionated and, whilst I didn't learn much new, I enjoyed some of his more outspoken views on some of the music not least his complete dismissal of pretty much everything Bowie produced from Diamond Dogs onwards.
The book inspired me to listen to a few tunes I'd not properly listened to before, particularly some by Syd Barrett and The Who.
Overall it's inessential, but enjoyable enough, particularly if you like David Bowie, Nick Drake, Syd Barrett, The Kinks and early Fleetwood Mac.