A new work with a unique collection of materials on revivals has appeared. It is entitled Encyclopedia of Religious Revivals in America, ed. Michael McClymond. 2 vols. Westport, Connecticut: Greenwood Press, 2007. The first volume contains information on revivals from Colonial America to the modern Pentecostal movements, Billy Graham, and the Willow Creek Community Church. The second volume contains many primary documents, 214 pages of bibliographical data, "A Guide to Archival Collections," and a helpful index.