The Evans book is indeed a great book. I conversed with Evans once on the phone and several times by email before he died, and he was furious with Sudhalter for misrepresenting some items in the earlier bio they did together as authenticated fact when they weren't. . . . He was determined that this book contain only hard data that was verified, authenticated, documented, etc. And it is a rather dry read as a result, but a fascinating collection of information and photos!