John Preston, Psy.D is professor emeritus with Alliant International University in Sacramento, CA and formerly with the University of California, Davis School of Medicine and the Professional School of Psychology, San Francisco. He is the author of 21 books covering topics such as: psychopharmacology, neurobiology, psychotherapy, spirituality and emotional healing. His books have been translated into 14 foreign languages. He is the author of the “Drugs in Psychiatry” chapter in the “Encyclopedia Americana”. Dr. Preston has presented over 500 invited talks during the past 25 years, speaking in the USA, Canada, Europe, Africa and Russia.

His strength is presenting complex information in an easy to understand way.

He is recipient of the “President’s Award” from the Mental Health Association and “Distinguished Contributions to Psychology Award” from the California Psychological Association.

“On a personal note, like other fellow human beings I have encountered significant emotional tragedies in my life, and hope that my books can make a difference in the lives of professionals as well as those who also suffer the difficulties of navigating through difficult times and emotional illnesses.”