Richard M. Billow is a clinical psychologist based in New York, USA. He was the director of the Postgraduate Group Program at the Derner Institute, Adelphi University, New York and currently serves as Clinical Professor in Adelphi's Postgraduate Programs in Psychoanalysis and Psychotherapy. He is the author of Relational Group Psychotherapy: From Basic Assumptions to Passion (2003), Resistance, Rebellion and Refusal in Groups: The 3 Rs (2010), Developing Nuclear Ideas: Relational Group Psychotherapy (2015), and Richard M. Billow's Selected Papers on Psychoanalysis and Group Process: Changing Our Minds (T. Slonim, Ed. , 2021).