John D. Preston, Psy.D., 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.

John H. O'Neal, MD, is a board-certified psychiatrist at Kaiser Sacramento Medical Center and assistant clinical professor in the department of psychiatry at the University of California, Davis, School of Medicine. He was in private practice for over twenty years and is past chief of the Department of Psychiatry at Sutter Community Hospitals in Sacramento, CA. O'Neal is a fellow of the American Psychological Association and lectures on depression and psychopharmacology to mental health professionals, self-help organizations, and the public. He is coauthor of Handbook of Clinical Psychopharmacology for Therapists.

Mary C. Talaga, R.Ph., Ph.D., is administrative services leader for Kaiser Permanente Pharmacy Operations, Northern California Region. She has been a pharmacist for over thirty years, with specialization in psychiatric pharmacy. Talaga has practiced in a variety of clinical settings and provides training and mentoring to health care professionals as well as general education to patients and consumers. She is coauthor of Handbook of Clinical Psychopharmacology for Therapists.