The Jack-Roller tells the story of Stanley, a pseudonym Clifford Shaw gave to his informant and co-author, Michael Peter Majer. Stanley was sixteen years old when Shaw met him in 1923 and had recently been released from the Illinois State Reformatory at Pontiac, after serving a one-year sentence for burglary and jack-rolling (mugging), Vivid, authentic, this is the autobiography of a delinquent-his experiences, influences, attitudes, and values. The Jack-Roller helped to establish the life-history or "e;own story"e; as an important instrument of sociological research. The book remains as relevant today to the study and treatment of juvenile delinquency and maladjustment as it was when originally published in 1930.