Raymond M. Bergner received his Ph.D. in Clinical Psychology from the University of Colorado under the direction of Peter Ossorio. He is currently Full Professor of Psychology at Illinois State University and has a private practice in Bloomington, Illinois. His work in Descriptive Psychology has been concerned with its applications to psychopathology, psychotherapy, and various philosophy of science issues. He is a two-time President of the Society for Descriptive Psychology (1984 and 2004), a member of the Editorial Board of Advances in Descriptive Psychology since its inception, and the co-editor of four volumes in this series. Dr. Bergner has published over 65 articles, book chapters, books, and edited books. Many of these articles have appeared in such national and international journals as Family Process, Psychotherapy, the American Journal of Psychotherapy, The Journal of Sex and Marital Therapy, and Clinical Psychology: Science and Practice.