For many children and young people, Britain is a harmful society in which to grow up. This book contextualises the violence that occurs between a small number of young people within a wider perspective on social harm. Aimed at academics, youth workers and policymakers, the book presents a new way to make sense of this pressing social problem. The authors also propose measures to substantially improve the lives of Britain’s young people - in areas ranging from the early years, to youth services and the criminal justice system.