His research and publications focus on suicide, including cognitive characteristics of suicidal individuals, classification issues and the effectiveness of psychotherapeutic interventions. Dr. Ellis is the author of Cognition and Suicide: Theory, Research and Practice and the co-author of Suicide Risk: Assessment and Response Guidelines and Choosing to Live: How to Defeat Suicide through Cognitive Therapy.
He earned his bachelor's degree from the University of Texas at Austin and his doctorate from Baylor University. He is a Fellow of the American Psychological Association and Diplomate of the American Board of Professional Psychology.