Joshua J. Knabb, PsyD, ABPP, is director of the Doctor of Psychology (PsyD) in Clinical Psychology Program and associate professor of psychology in the College of Behavioral and Social Sciences at California Baptist University. He is also author/coauthor of three previous books for Christian clients: Contemplative Prayer for Christians with Chronic Worry (with Thomas Frederick), Acceptance and Commitment Therapy for Christian Clients, and Faith-Based ACT for Christian Clients.