Many of the tips in the book have nothing to do with the swing. For example, golfers with arthritis in their hands are advised to wear padded weightlifting gloves instead of the standard golf glove. There's even a tip for players who wear bifocals (don't wear them on the golf course, since you'll have to change your swing to be able to see the ball; opt for distance-vision-only lenses).
Of course, much of the information--particularly the tips for chipping and putting--can be used by all golfers. But if you're the competitive sort, you might not want others (like your regular playing partners) to get their hands on this valuable guide. --Lou Schuler