John D. Preston, PsyD, ABPP, is professor emeritus at Alliant International University in Sacramento, CA, and has also served on the faculty of the University of California, Davis, School of Medicine and the Professional School of Psychology, San Francisco. He has authored twenty books in the areas of psychotherapy, neurobiology, and psychopharmacology, and coauthored Clinical Psychopharmacology Made Ridiculously Simple and Handbook of Clinical Psychopharmacology for Therapists. Preston is a fellow of the American Psychological Association and has lectured internationally.
Ruth C. White, PhD, is assistant professor of social work at Seattle University in Seattle, WA. She received her doctorate in social welfare from the University of California, Berkeley. She has worked in mental health for many years, and for the last seven years has taught and trained social workers as a member of the faculty of the College of Arts and Sciences of Seattle University. She is a member of the National Speakers Bureau of the Depression and Bipolar Support Alliance.