Flutterby™! :

Peter McWilliams, the author of Life 101, later had a falling out with John-Roger, his alleged co-author, and the Insight/MSIA organiation, and wrote Life 102: What to do when your guru sues you. Very interesting reading. It's not quite as compelling as The Road To Xenu, the critique of Scientology written by Margery Wakefield, partially because the Insight/MSIA people are a little more subtle, but both are very interesting reading if you're at all interested in how manipulation of emotions can be used. For those of us who believe that some of the organizations which practice these techniques can be very beneficial, it's also a good look at when help becomes harm and ways to tell the difference.