Very dense and thoroughly researched, occasionally veering into "why do I need to know the name of this miscellaneous roadie who was around for three months" territory, but highly enjoyable and paints a very visceral image of much of the key context for this band and their music.
HOWEVER this author takes great care to criticize, undermine, and sort of generally lambast The Clash members at any opportunity. Should we hold people accountable for their actions in light of their publicized values and ethics? Sure. Should we care all that much if it is applying to some guys in their late 20s trying to figure out who they are and what their art is? Not as much as Marcus Gray and all the NME articles he references.
It seems to me that The Clash tried their best to live up to an idyllic system of ethics that would be very difficult to keep in the face of everything they aspired to and how they were treated by the music industry, their manager Bernie Rhodes, and the public at large. For my money, punk rock is by definition not meant to be sustainable. If you're in opposition to pretty much all forms of authority and tradition (of which the Clash really weren't, in fact they pushed the form the other direction towards a progressive call to action instead of a vindication of apathy, i.e: Sex Pistols)
So to criticize them for playing stadiums supporting The Who, or for including a song on a Levi's commercial 15 years after disbanding, or putting out a slick and accessible album like Combat Rock... is just petty bullshit. Especially since this book takes plenty of page space to point out the band's rockstardom ambitions and dedication to a tradition following bands like Mott the Hoople and the Stones.
Anyway. Joe Strummer was cool as hell. RIP.