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Title: Total Rubbish
Review: I put one star because amazon wouldn't let me leave it blank, but the one star is totally undeserved. This is the worst book I have ever read on the subject. The authors put forth theories and have nothing to back it up. There are no references or citations to show that the authors are basing their theories on anything other than their own imagination. Not worth the money or time. Extremely disapointing.
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