This extensively researched book addresses sports fan violence sociologically, using both theoretical models and empirical data. Lewis draws from the theoretical approaches based on the collective behavior models of Neil J. Smelser and Clark McPhail in order to show how to study fan violence using the intensive case history method. This method is then applied to an in-depth analysis of the Ohio State-Michigan football celebration riot in 2002 and the Boston Red Sox celebration riot in 2004. The book concludes by proposing solutions for the prevention and control of sports fan violence.