Robert W. Firestone, PhD, is a clinical psychologist and author. He has been affiliated with the Glendon Association as its consulting theorist since its inception. His innovative ideas related to psychotherapy, couple and family relationships, suicide, parenting, and existential issues have been the inspiration and cornerstone of Glendon's research and many publications.Lisa Firestone, PhD, is a clinical psychologist and the Director of Research and Education at the Glendon Association. She also maintains a private practice in Santa Barbara, CA. Since 1987, she has been involved in clinical training and applied research in the areas of suicide and violence.Joyce Catlett, MA, is an author and lecturer. Since 1979, she has collaborated with Robert Firestone on writing 12 books and numerous articles. She currently lectures and conducts continuing education workshops at universities and mental health facilities throughout the United States and Canada.