Rabbi David Jaffe leads the Inside Out Wisdom and Action Project, which integrates social change and Jewish spiritual practice. He is the author of Changing the World from the Inside Out, winner of the National Jewish Book Award. David's writing, teaching and consulting explores the intersection of spiritual development and ethical action in the world. He teaches Mussar (applied Jewish ethics) and Chassidut (applied Jewish mysticism) around the U.S. with groups like the Institute for Jewish Spirituality, the Mussar Institute and Preside. David teaches in the Hebrew College Rabbinical School and is a Visiting Research Fellow at the Boston University School of Theology's Religion and Conflict Transformation Program. He serves on the board of directors of the Brockton Interfaith Community and lives in Sharon, MA, USA.