From in-depth ethnographic research involving close interaction with the prison population, in which inmates present their life histories marked by poverty, violence, and abuse (whether as victims, as agents, or both), Frois observes that the traditional idea of "doing time", in the sense of a strenuous, repressive, or restrictive experience, is paradoxically transformed into "having time" - an experience of expanded self-awareness, identity reconstruction, or even of deliverance. Ultimately, this engaging and compassionate study questions and defies customary accounts of the impact of prisons on those subjected to incarceration, and as such it will be of great interest for scholars and students of penology and the criminal justice system.