Rick Hanson, Ph.D., is a neuropsychologist and New York Times best-selling author. His books include Hardwiring Happiness, Buddha's Brain, Just One Thing, and Mother Nurture. Hanson is the founder of the Wellspring Institute for Neuroscience and Contemplative Wisdom. He is on the Advisory Board of the Greater Good Science Center at UC Berkeley and taught in meditation centers worldwide.
Jack Kornfield was trained as a Buddhist monk in Thailand, Burma, and India and has taught around the world since 1974. He also holds a Ph.D. in clinical psychology. He is a co-founder of the Insight Meditation Society and of the Spirit Rock Center. He lives in northern California.