This is the first book I've read which attempts to describe in great detail what's REALLY going on when we "release" the club. And for the two fundamental styles of swings: e.g. Mickelson vs Garcia (two- vs one-plane swings). Plenty of detail for you analytics. Also some hints for the "feel" crowd. My main reason in bringing this book up is for really knowledgeable golfers to mercilessly and objectively comment after evaluating the accuracy of what's printed. Please, no bashing. Pretend Ben Hogan is reading your words and you don't really want Ben to think you're a neanderthal.