By Royal Command: Barnum in Europe explores the European tours and cultural impact of the legendary American showman P. T. Barnum. Rather than focusing only on spectacle, the book examines how Barnum introduced large-scale American entertainment to European audiences and how European royalty, press, and the public reacted.

It blends biography, cultural history, and performance history, showing how Barnum’s touring exhibitions became major international events — not just popular entertainment but social and political happenings.