Code to Joy: The Four-Step Solution to Unlocking Your Natural State of Happiness. Combining six decades of clinical experience with cutting-edge research, two acclaimed leaders in the field of psychology have developed a revolutionary approach to happiness—one that’s accessible and practical enough to apply at home, yet powerful enough to create a profoundly positive transformation in our lives. Doctors George Pratt and Peter Lambrou have been delivering successful results to professional athletes, top executives, celebrities, and nearly 45,000 other patients with their four-step process.