Agree with fishinjdb.
I have read 'The Little Red Book' about 10 years ago. A golfing buddy recommended it to me after observing that I was short on confidence and second guessing my swing all the time. It must have been one of the best, if not the best self help book for golfers.
I think it lets you feel better about yourself and at the same time, teaches you something about golf. It doesn't screw your swing in giving you swing instructions but it changes your outlook about golf in a positive way. Golf doesn't have to be complicated and Harvey had managed to conveyed it so effectively.
Highly recommended for any golfer.