Psychiatrist Irvin D. Yalom. Yalom is one of the world's leading psychotherapists, and his theories have been adopted by most of this country's clinics and hospitals. Yalom has written several books on psychotherapy, aimed both at experts and the layman. Yalom's new book is called "Love's Executioner & Other Tales of Psychotherapy." It's a collection of ten stories, each featuring one of Yalom's patients, that illustrate the individual difficulties and common threads of psychotherapy.