Inside the Roman Army

Sex with Kings

500 Years of Adultery, Power, Rivalry, and Revenge

The Campaigns of Napoleon

Napoleon

A Political Life

Black Death

St. Patrick of Ireland

A Biography

The Conquerors

Roosevelt, Truman and the Destruction of Hitler's Germany, 1941-1945

Men of Mathematics

Venice: Lion City

The Religion of Empire

Milosevic

Portrait of a Tyrant

My Cousin the Saint

A Story of Love, Miracles, and an Italian Family Reunited

Ladies of Liberty

The Women Who Shaped Our Nation

Earthly Powers

The Clash of Religion and Politics in Europe, from the French Revolution to the Great War

God and Empire

Jesus Against Rome, Then and Now

Harvard Rules

Lawrence Summers and the Battle for the World's Most Powerful University

The Pirate Queen

Queen Elizabeth I, Her Pirate Adventurers, and the Dawn of Empire

Testimony

France, Europe, and the World in the Twenty-first Century

A Short History of World War I

Short History

The Great Upheaval

America and the Birth of the Modern World, 1788-1800

The Kennedys Amidst the Gathering Storm

A Thousand Days in London, 1938-1940

Amazing Grace

William Wilberforce and the Heroic Campaign to End Slavery

Master Mind

The Rise and Fall of Fritz Haber, the Nobel Laureate Who Launched the Age of Chemical Warfare

The Genius in the Design

Bernini, Borromini, and the Rivalry That Transformed Rome

To Keep the British Isles Afloat

FDR's Men in Churchill's London, 1941

Read My Pins

Stories from a Diplomat's Jewel Box