Fleet Maull PhD, has been a Shambhala practitioner for more than 40 years. He has served as Acharya and has led Shambhala programs and retreats throughout North America, Europe and Latin America. Fleet is a Roshi (senior lineage teacher) in the Zen Peacemaker and Soto Zen lineages. He is a consultant, executive coach, an internationally renowned social activist and founder of numerous engaged organizations including Prison Mindfulness Institute, Engaged Mindfulness Institute, Center for Mindfulness in Public Safety and the National Prison Hospice Association. He is the author of Dharma in Hell, The Prison Writings of Fleet Maull and Radical Responsibility: How to Move Beyond Blame, Fearlessly Live Your Highest Purpose and Become an Unstoppable Force for Good.