David W. Appleby (Ph.D., University of Delaware; Ph.D., University of Northern Colorado) is a minister, counselor and trainer working in the overlapping fields of family counseling, psychology and deliverance ministry. He is the founder and president of Spiritual Interventions, Inc., a non-profit organization that promotes spiritual interventions in Christian counseling practice. He also teaches courses in psychology and professional and pastoral counseling at the Center for Counseling and Family Studies at Liberty University, Lynchburg, Virginia. The author of (2009), Appleby has spoken and conducted training sessions on deliverance in therapeutic practice at numerous churches and institutions across the country.
George Ohlschlager (J.D., M.S.W., University of Iowa) is a psychotherapist, ethicist and writer. He is a certified Christian counselor with the International Board of Christian Counselors and a certified professional Christian counselor and Christian mediator with the American Association of Christian Counselors. Among Ohlschlager's many books and publications are (coeditor with Timothy Clinton and Archibald D. Hart, 2009) and (coauthor with Timothy Clinton, 2002).