The number of hours in a day is fixed, but the quantity and quality of energy available to us is not. This fundamental insight has the power to revolutionize the way you live.<br> As Jim Loehr and Tony Schwartz demonstrate in their groundbreaking "New York Times" bestseller, managing energy, not time, is the key to enduring high performance as well as to health, happiness, and life balance. Their Full Engagement Training System is grounded in twenty-five years of working with great athletes -- t...