Elite athletes are not just fitter than the rest of us. They have usually figured something out about pressure, failure, preparation, and the management of attention that the rest of us could use. The question is whether that knowledge transfers. These books try. They are written by competitors, coaches, and researchers who have studied what separates good from great and found that the answer is mostly mental — not willpower exactly, but something more specific about how you relate to the moment you are in.