The cover of the book 'The Life of Catalina de Erauso, the Lieutenant Nun: An Early Modern Autobiography' by Sonia Perez-Villaneuva. The cover features a portrait of Catalina de Erauso, a Spanish nun who lived as a man in the 17th century. The portrait is in a classical style, with a red background and a gold frame. The title of the book is prominently displayed at the top in bold, black font, and the author's name is at the bottom in smaller text.