Peter Hayes ’68 is professor emeritus of history and Holocaust studies at Northwestern University, a former chair of the Academic Committee of the United States Holocaust Memorial Museum, and the author or editor of thirteen books, including Why? Explaining the Holocaust, which has been or is about to be translated into Chinese (complex), German, Portuguese, Spanish, and Slovak; How Was It Possible? A Holocaust Reader; and The Oxford Handbook of Holocaust Studies. He lectures widely in Europe and North America on German history and the Holocaust and has appeared in numerous documentaries, including most recently the Ken Burns production of The U.S. and the Holocaust.