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Review title: Helpful, but not 5 stars.
Product review: This book has some helpful information, however it focuses on a celebration of their technique rather than the technique itself. Maybe the first book should be purchased as a companion (though its copyright is 1978 and may be dated).There is too much about their success stories. It just didn't feel right to me. Worth a look, but not to be relied upon as a sole source for training information.
