John D. Preston, PsyD, ABPP, (1950-2020) , was a licensed psychologist, and author or coauthor of twenty books. He was professor emeritus of psychology at Alliant International University, and served on the faculty of the UC Davis School of Medicine. Preston lectured widely in the United States and abroad. He was a recipient of the Mental Health Association's President's Award for contributions to the mental health professions, and was a fellow of the American Psychological Association (APA). Bret A. Moore, PsyD, ABPP , is a prescribing psychologist and board-certified clinical psychologist in San Antonio, TX. His primary specialties include clinical psychopharmacology, psychological trauma, and post-traumatic growth.

In addition to maintaining an active practice in clinical psychopharmacology over the past fifteen years, he has designed and taught courses in clinical psychopharmacology, clinical medicine, and military psychology for the University of Missouri, Fairleigh Dickinson University, and the Chicago School of Professional Psychology. Moore has authored and edited twenty-four books, dozens of book chapters, and over one hundred peer-reviewed and professional articles. John H. O'Neal, MD , is a board-certified psychiatrist who began a private practice in 1977. He is past chief of the department of psychiatry at Sutter Community Hospital in Sacramento, CA, and was an associate clinical professor of psychiatry at the UC Davis School of Medicine. He is a distinguished fellow of the APA. He lectures on depression and psychopharmacology to mental health professionals, employee assistance programs, and the public. O'Neal received his master's in clinical psychology from Harvard University, and doctor of medicine from the University of Washington.

Mary C. Talaga, RPh, PhD , has been a pharmacist since 1977, with specialization in psychiatric pharmacy and pharmacy administration. She has extensive experience in health care, and has practiced in a variety of clinical settings. Over her career, she has contributed to the development of best practice guidelines, and has promoted collaborative care models. She has provided training and mentoring to health care professionals, and education to patients and consumers.