Jon G. Allen, Ph.D., holds the position of Clinical Professor as a member of the Voluntary Faculty in the Department of Psychiatry and Behavioral Sciences at the Baylor College of Medicine. He is a member of the honorary faculty at the Houston Center for Psychoanalytic Studies and the adjunct faculty of the Institute for Spirituality and Health at the Texas Medical Center. He retired from clinical practice as a senior staff psychologist after 40 years at The Menninger Clinic, where he taught and supervised fellows and residents; conducted psychotherapy, diagnostic consultations, and psychoeducational programs; and led research on clinical outcomes. He continues to teach, write, and consult.