Emma Southon is a Bookshop Manager at Waterstones and the author of A History of the Roman Empire in 21 Women, Agrippina: Empress, Exile, Hustler, Whore, a Best Book of the Year for the New Statesman. Armed with a PhD in Ancient History, she also co-hosts the History is Sexy podcast. She lives in Belfast, with her cat Livia, and tweets @NuclearTeeth. www.emmasouthon.com.