This book examines the rise and proliferation of 'Supermaxes', large prisons dedicated to holding prisoners in prolonged and strict solitary confinement, in the United States since the late 1980s.

Drawing on unique access to two Supermax prisons and on in-depth interviews with prison officials, prison architects, current and former prisoners, mental health professionals, penal, legal, and human rights experts, it provides a holistic view of the theory, practice and consequences of these prisons. Given the historic uses of solitary confinement, the book also traces continuities and...