Chances are your diet is actually causing your golf scores to go up, says author and veteran golf writer Scott Kramer. His e-book The Golfer's Diet ($2.99) is entertaining and fast-reading, helping golfers learn in layman terms what kind of foods to eat before, during and after a golf round. It explains why the most-popular food items at golf courses are often the worst for your game. What's really cool is that PGA Tour and LPGA Tour pros reveal what they eat, when they eat it, and what foods they avoid. We highly recommend it!