Worlds of the Ring is a groundbreaking exploration of the interwar European circus scene, focusing on the German Sarrasani and British Bertram W. Mills' circuses. This study illuminates the correlation between the circus's evolution and imperialism/nationalism, revealing how these enterprises shaped national identities for popular audiences. Examining the years 1918-45, the book takes a transnational perspective, uncovering the interplay of international and national forces that influenced the modern circus. Through case studies, it delves into the lives of individuals in the industry, using diverse sources like newspapers, legal documents, and performer archives. The book introduces the concept of Orientalism to analyse how circuses depicted foreign worlds, and provides a fresh perspective on interwar popular culture, globalising forces, and the circus's ties to European imperialism in the early 20th century.