Peter Hayes is Professor Emeritus of History and German and Theodore Zev Weiss Holocaust Educational Foundation Professor Emeritus of Holocaust Studies at Northwestern University and a former chair of the Academic Committee of the United States Holocaust Memorial Museum. Among his thirteen books are The Oxford Handbook of Holocaust Studies (co-edited with John K. Roth), How Was It Possible? A Holocaust Reader, and Why? Explaining the Holocaust, which also has appeared in German and Spanish translations and shortly will be in Chinese, Polish, and Slovak, as well.