Eric A. Johnson is the author of Urbanization and Crime: Germany 1871-1914 and The Civilization of Crime: Violence in Town and Country Since the Middle Ages. A professor of history at Central Michigan University and a fellow of The Netherlands Institute for Advanced Study, he lives in Mt. Pleasant, Michigan.
Karl-Heinz Reuband is professor of Sociology at the University of Dusseldorf. He lives in Dusseldorf, Germany.