George Leonard was a writer, editor, and educator, who introduced Leonard Energy Training (LET), a practice for centering the mind, body, and spirit, to more than 50,000 people in the United States and abroad. He was the author of a number of books on human possibilities and social change, as well as President Emeritus of the Esalen Institute, President of the Association for Humanistic Psychology, and President of ITP International. He died in 2010.