Ben-Shahar, Tal: - Tal Ben-Shahar, PhD, has written eight books, including the New York Times bestseller Happier and his latest, Happier, No Matter What. He is the cofounder of the Happiness Studies Academy and Potentialife. Ben-Shahar taught the largest course at Harvard, "Positive Psychology," and the third largest, "The Psychology of Leadership," attracting 1,400 students per semester--approximately 20 percent of all Harvard undergraduates. He obtained his BA and PhD from Harvard, and for the last twenty years has been teaching leadership, happiness, and mindfulness to audiences all over the world.