Stephen Michael Stahl is an author and professor of psychiatry with expertise in psychopharmacology. He is currently a Professor at the University of California, San Diego and serves as Honorary Fellow in psychiatry department at the University of Cambridge. He is also the chairman of Neuroscience Education Institute (NEI) and Arbor Scientia Group. Stahl also serves as the Director of Psychopharmacology Services at the California Department of State Hospitals as well as the Editor-in Chief of CNS Spectrums.