Professor Wigger teaches American history at the University of Missouri in Columbia, Missouri. His research interests focus on American cultural and religious history.
His publications include the following books:
PTL: The Rise and Fall of Jim and Tammy Faye Bakker's Evangelical Empire
American Saint: Francis Asbury and the Methodists
Taking Heaven by Storm: Methodism and the Rise of Popular Christianity in America, 1770-1820
Methodism and the Shaping of American Culture, co-edited with Nathan Hatch.