“Supermax” prisons are typically reserved for convicted political criminals such as terrorists and spies and for other inmates who are considered to pose a serious ongoing threat to the wider community, to the security of correctional institutions, or to the safety of the people within. The Globalization of Supermax Prisons examines why nine prominent advanced industrialized countries have adopted the supermax prototype, paying particular attention to the economic, social, and political processes that have affected each nation.