In comparison to British fascism, anti-fascism is uncharted territory. This book seeks to redress the balance of existing literature which tends towards a narrow focus on the protagonists of fascism rather than opponents. Anti-fascism in Britain defines anti-fascism in broad terms and offers both a comprehensive and absorbing historical overview that begins with opposition to the precursors of Oswald Mosley's British Union of Fascists in the 1920s and ends with anti-fascism in the present day.