The impact zone - an area measuring a couple of feet before the ball and a couple after it - is what good golf is all about. It's sometimes referred to as the 'moment of truth', or the 'business end' of the golf swing. As such, it should be analysed, practised and trained more than anything else.

It isn't, though. Work your way through most golf instruction books, magazines, DVDs or internet tips and you'll find that impact barely gets a mention, not in any detailed sense.

It's understandable. Impact is a mystery to the majority of golfers, even very good players. Good players rely on instinct at impact. But impact should not be left as a blur. Impact is not a moment. It is The Moment. It is the precise moment that decides where you ball will go, at what trajectory and at what speed. Now experienced coaches Steve Gould and D.J. Wilkinson reveal the secrets that every golf pro knows instinctively, but that modern teaching has almost forgotten about.

Golf's Golden Rule is the first golf manual to focus on impact in detail as the key part to perfecting a good swing. Packed with detailed step-by-step illustrations, it will revolutionise your game.