Tan, Siang-Yang: - Siang-Yang Tan (PhD, McGill University) is senior professor of clinical psychology at Fuller Theological Seminary, senior pastor emeritus of First Evangelical Church Glendale in Southern California, and the author of numerous books, including Lay Counseling, Shepherding Gods People, and Coping with Depression. He is a licensed psychologist and a fellow of the American Psychological Association. Tan currently serves as spiritual director of the American Association of Christian Counselors.