- Shadows in the Marble: Portraits of Roman Art (1997)
- Cleopatra: Queen of Egypt (2000)
- Alexander the Great: Son of the Gods (2003)
- King Arthur and the Knights of the Round Table (2006)
- Rome: City of Emperors (2010)
- The French: A History of Absolute Power (2013)
- Marie Antoinette: The Last Queen of France (2016)
- Catherine the Great: The Russian Empress (2020)
Essays and articles
- "The Art of Ancient Greece" (1995)
- "The Roman Empire: A History" (1998)
- "Cleopatra: The Woman Behind the Legend" (2001)
- "Alexander the Great: The Man Who Conquered the World" (2004)
- "King Arthur: The Legend and the History" (2007)
- "Rome: The Eternal City" (2011)
- "The French: A History of Revolution" (2014)
- "Marie Antoinette: The Queen Who Lost Her Head" (2017)
- "Catherine the Great: The Empress Who Ruled Russia" (2021)