Sharon Suh is a professor and chair of the department of theology and religious studies at Seattle University. She specializes in the study of Buddhism and was an advisor to the Pew Research Center on its study of Buddhism.

Peter A. Huff is chairman of the department of religious studies at Centenary College of Louisiana in Shreveport. Huff teaches courses on global fundamentalism and is the author of What Are They Saying About Fundamentalisms? (Paulist Press, 2008).

Camille Lewis is chairwoman of the department of rhetoric and public address at Bob Jones University in Greenville, S.C., and author of Romancing the Difference: Kenneth Burke, Bob Jones University and the Rhetoric of Religious Fundamentalism.

Jon Armajani is an associate professor of theology at the College of St. Benedict/St. John’s University in St. Joseph, Minn. He has written about Islamic fundamentalism and is writing a book to be titled Islam and the West: Understanding Islamic Fundamentalism.

David S. Katz is a professor of the history of books and chairman of the history department at Tel Aviv University in Tel Aviv, Israel. He has written about fundamentalism and scriptural literalists.

Emmanuel Sivan is an emeritus professor of history at Hebrew University of Jerusalem in Israel and an expert in comparative fundamentalisms. He is a co-author, with Gabriel A. Almond and R. Scott Appleby, of Strong Religion: The Rise of Fundamentalisms Around the World, a publication in the Fundamentalism Project series.

Eliezer Don-Yehiya is a professor of political studies at Bar-Ilan University in Ramat Gan, Israel. He has written widely on varieties of Jewish extremism.

Richard T. Antoun was a professor emeritus of anthropology at the State University of New York at Binghamton. He wrote Understanding Fundamentalism: Christian, Islamic and Jewish Movements.

Charles B. Strozier is a history professor at the John Jay College of Criminal Justice of the City University of New York in New York City, and he is director of the Center on Terrorism there. He researches and writes about the psychology of religious extremism.