Wall Shadows: A Study In American Prisons is a non-fiction book written by Frank Tannenbaum, an American sociologist and criminologist. The book is an in-depth study of the American prison system, examining the conditions within prisons and the impact they have on inmates. Tannenbaum's research draws on his own experiences as a prisoner, as well as interviews with other inmates, prison staff, and experts in the field. The book explores issues such...