The book by Guy Geltner, The Medieval Prison: A Social History, first published in 2008, has been defined as "A most welcome addition to what has been a neglected field of medieval legal and social history. Geltner argues very persuasively that imprisonment was an important phenomenon in medieval Italian cities. The Medieval Prison should appeal to a fairly broad audience outside the field of medieval history" - James B. Given, author of Inquisition and Medieval Society
The Italian translation of this work has been recently published by Viella:
Guy Geltner, La prigione medievale. Una storia sociale, Collana: La storia. Temi, 27, Viella, 2012
More information here.