The Big Idea
The book, The Power of Full Engagement: Managing Energy, Not Time, Is the Key to High Performance and Personal Renewal, by Jim Loehr and Tony Schwartz outlines a system for improving one's life.

Its thesis is that management of our energy determines how fully engaged we are to life. The book proposes to manage energy by identifying the source of the problem, i.e. whether there is a problem with one's physical, spiritual, emotional, or mental energy. Each is interdependent of the other so it is important to identify the problem. It also advocates the use of positive rituals to enact lasting change.

The basis of the book is the authors' experience in training professional athletes like tennis players (Pete Sampras, Monica Seles), golfers (Mark O'Meara, Ernie Els), boxers and hockey players. Instead of focusing on technical skills, the authors focused on these athletes' energy management skills. Thus a new breed of athletes emerged: the “Corporate Athletes.”