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. A prize-winning teacher, he lectures widely on German and Holocaust history both in the United States and abroad. Professor Hayes is the 2019-2020 Sara and Asa Shapiro Scholar in Residence at the USC Shoah Foundation Center for Advanced Genocide Research.