Leonard S. Milling, PhD is the recently retired Professor of Psychology at the University of Hartford. He is a Fellow of the American Psychological Association (APA) through Division 30 (Society of Psychological Hypnosis). He received the Distinguished Contributions to Scientific Hypnosis award from APA Division 30 in 2020. He is best known for his peer-reviewed journal articles on the mediator and moderator variables associated with hypnotic pain reduction, as well as on the efficacy of hypnosis as a treatment or intervention.