Late reply...

Bill's book is a good read, though I'd hoped for more on the subject of music (like, KLF). Other than that, it's excellent. His views and remarks may be too weird at first, but in the end "45" winned me over, whether he's writing about art, aging, patriotism or his own myth-making (like the Kalevala releases).

I also have Julian Cope's books, which show Bill from an entirely other perspective.

There's another tome which (at first) suffered from the same as Bill's, it's "Renegade" by Mark E. Smith, and that also turned out to be something I re-read. I recommend it to the whole list, not just because MES has been namechecked in Bill and Jim's works, but also because it's a fun read, even though you don't get what you'd expect (full Fall discography, members list, etc.).