Primo Levi, born on July 31, 1919, feared that no one would believe the horrors he had seen at Auschwitz. His autobiographical book, "If This Is a Man," was one of the first published accounts of the Holocaust, and is considered one of the most important pieces of literature about the Nazis' atrocities. Now more than ever, it is critical that we recognize the signs of extremism and hatred today. Visit www.AboutHolocaust.org to know more. | World Jewish Congress