Elie Aron Cohen was a Dutch medical doctor who, being Jewish, was sent to the Auschwitz concentration camp. He arrived there on 16 September 1943. His first wife, his first son as well as his parents-in-law were killed upon arrival, but he managed to survive through a combination of chance and skill. His status and abilities as a doctor were instrumental for his survival. On 6 May 1945 he was liberated by the U.S. military in Melk (Austria), where he had been transported by way of Mauthausen-Gusen. After World War II, Elie Cohen remarried a Jewish woman. They have two children, a daughter and a son. Elie Cohen is the author of a number of books about the Holocaust. The first of these was the Ph.D. thesis on which he graduated on 11 March 1952, at Utrecht State University. The book was entitled "The German Concentration Camp — a medical and psychological study", and it was one of the first scientific descriptions of what had happened in killing centres such as Auschwitz. It also provided an analysis of the psychology of the SS-men who manned these camps and of their victims: the prisoners. At that time there was little interest in the Netherlands in recounting these events, but surprisingly the thesis was much in demand. It was later translated into English, Swedish and Japanese.