Leadership and Community in Late Antique Gaul (University of California Press, 1985)
Saints and their Miracles in Late Antique Gaul (Princeton University Press,1993)
Kingdom of Snow: Roman Rule and Greek Culture in Cappadocia (University of Pennsylvania Press, 2002).
Families and Friends in Late Roman Cappadocia (University of Pennsylvania Press, 2003).
Becoming Christian: The Conversion of Roman Cappadocia (University of Pennsylvania Press, 2003).
The Roman Revolution of Constantine (Cambridge U.P. 2007)