Perrottet is the author of five books — a collection of travel stories, Off the Deep End: Travels in Forgotten Frontiers (1997); Pagan Holiday: On the Trail of Ancient Roman Tourists (2002); The Naked Olympics: The True Story of the Greek Games (2004); Napoleon’s Privates: 2500 Years of History Unzipped (2008); and The Sinner’s Grand Tour: A Journey Through the Historical Underbelly of Europe (2012). His travel stories have been translated into a dozen languages and widely anthologized, having been selected six times for the Best American Travel Writing series. He is also a regular television guest on the History Channel, where he has spoken about everything from the Crusades to the birth of disco.