Ronald Kramer is Senior Lecturer in Criminology at the University of Auckland. His previous books include The Rise of Legal Graffiti Writing in New York and Beyond and Culture, Crime and Punishment.

James C. Oleson is Associate Professor in Criminology at the University of Auckland. His previous books include Criminal Genius: A Portrait of High-IQ Offenders and Fifty Years of Causes of Delinquency: The Criminology of Travis Hirschi.