The Tudors: The Complete Story of England's Most Notorious Dynasty

The World Remade: America in World War I

The Moral Epistles: 124 Letters to Lucilius

A World Undone: The Story of the Great War, 1914 to 1918

Rome

Cosa Nostra: The Definitive History of the Sicilian Mafia

Mussolini's War: Fascist Italy from Triumph to Collapse, 1935-1943

Saving Italy

Life In Ancient Rome

Blood Brotherhoods: The Rise of the Italian Mafias

Moneta: A History of Ancient Rome in Twelve Coins

The Feud That Sparked the Renaissance: How Brunelleschi and Ghiberti Changed the Art World

Mussolini's Autobiography and His Political Speeches (November 1914-August 1923)

Cassino '44: Five Months of Hell in Italy

Michelangelo, God's Architect: The Story of His Final Years and Greatest Masterpiece

Merchants in the Temple: Inside Pope Francis's Secret Battle Against Corruption in the Vatican

The History of Rome in 12 Buildings: A Travel Companion to the Hidden Secrets of The Eternal City

The Monster of Florence

Botticelli's Secret: The Lost Drawings and the Rediscovery of the Renaissance