hey, ive read that bob spitz one twice...i think it just has the most information, but at some points he gives tabloid like recreations of events in their lives...so while the personal parts of their lives are treated a tad ridiculous at times, there are great great parts about their recording processes, business negotiations, and tours...this dude gets down to like where they ate meals at certain important times...ive read about three or four and this is the one that I went and bought and have read twice in the last year hope this helps