Lisa Firestone, PhD, is a Clinical Psychologist in private practice and the Director of Research and Education at the Glendon Association. She conducts clinical training and research on suicide and violence, including developing The Firestone Assessment of Self-destructive Thoughts (FAST) and The Firestone Assessment of Violent Thoughts (FAVT). Dr. Firestone is the coauthor with her father, Dr. Robert Firestone, of Conquer Your Critical Inner Voice