The Cambridge Companion to the Circus provides a complete guide for students, scholars, teachers, researchers, and practitioners who are seeking perspectives on the foundations and evolution of the modern circus, the contemporary extent of circus studies, and the specialised literature available to support further enquiries. The volume brings together an international group of established and emerging scholars working across the multi-disciplinary domain of circus studies to present a clear overview of the specialised histories, aesthetics and distinctive performances of the modern circus. In sixteen commissioned essays, it covers the origins in commercial equestrian performance during the late-eighteenth century to contemporary inflections of circus arts in major international festivals, educational environments, and social justice settings.