József Debreczeni (1905–1978) was a Hungarian-language journalist, poet, and writer born in what is now Serbia. During the Second World War, he was deported to Auschwitz and other Nazi concentration camps, experiences that became the basis of his most important work. Although his writings remained largely overlooked for decades, they have recently gained international recognition as significant firsthand accounts of the Holocaust. His best-known book, "Cold Crematorium: Reporting from the Land of Auschwitz," is a powerful memoir that chronicles life inside Auschwitz and the subsequent camp system, offering one of the most vivid survivor testimonies of the Holocaust.