Jack Kornfield
Jack Kornfield (born July 16, 1945) is an American author and teacher in the vipassana movement in American Theravada Buddhism. He trained as a Buddhist monk in Thailand, Burma and India, including as a student of the Thai monk Ajahn Chah. He has taught meditation worldwide since around 1974. In 1975, he co-founded the Insight Meditation Society in Barre, Massachusetts, with Sharon Salzberg and Joseph Goldstein, and subsequently in 1987, Spirit Rock Meditation Center in Woodacre, California.