I read the book about a month ago and so far I think its the best one I've read. Eventhough she, Margaret Singer, doesn't go into specific cults and their beliefs, she explains simply the 'methods' various cult groups and large group awareness training groups use. I highly recommend it. Obviously you or someone you know has had a cultish experience. It is very informative and explains the psychological and physiological influences and methods these groups use to recruit and hold people in cults.
No, she doesn't get into spirituality. Wiser Aussie gives a pretty good summary. I'd add only that she gives some examples of how the cult techniques are used to recruit and some examples of cases brought against specific LGATs that describe some of the damage done. The chapter on intrusions into the workplace is especially good, as this is something few people think about.
BTW -- get the 1995 first printing if you can (you'll have to get it used probably) -- the second edition has some material removed due to litigation with a particular LGAT. If you can't, the second ed. is still worth the reading.
Thanks for the help. I asked about the spirituality because many groups these days teach esoteric sciences and because of their reputations, spirituality seems to have a negative connotation to it.
As Lightwolf mentioned, the book doesn't go into spirituality. I checked the index of a 2003 published copy and the author briefly touches the subject in 1 or 2 pages. Its still worth the read.
Hope you find the book knowledgable and informative.
I read the first three chapters and then skipped around to chapter six. I liked when it spoke on hyperventiling and some of the breathing exerises taught by many swamis, yogis, and gurus. I can relate them to my own experience and know what to watch out for.