This book is a comprehensive and practical guide to the mental disciplines of high performance, from the expert who developed the US Navy SEALs mental toughness curriculum and has worked with thousands of top athletes, elite military personnel, business executives, and first responders. These stars perform across a wide variety of fields, but they all have something in common: when they are at work they know how to think clearly, stay focused, and shrug off setbacks under very high levels of stress. They may have superb physical and intellectual traits, but it is the stuff going on above the neck and between the ears that makes them excellent. The difference between settling and achieving, between good and great, between contentment and fulfillment, is based entirely on their mental approach.