The subject of interpersonal confirmation has been explored at the University of Denver during the past five years. The resultant body of literature--research and theory--remains largely unpublished and is summarized here. The paper briefly reviews the origin of the interpersonal use of the term "confirmation" and offers an initial definition of the phenomenon. The first section of the paper describes a number of empirical investigations which suggest the pervasiveness of interpersonal confirmation. The second section outlines two theories of interpersonal confirmation, one by Evelyn Sieburg and one by Carl Larson. The third section reviews two procedures for measuring interpersonal confirmation. The fourth section discusses completed research using the confirmation paradigm and mentions current research projects. The paper concludes by suggesting that perhaps the concept of confirming communication can bring unity to the discrepant definitions of the term "interpersonal communication." (Author/JM)