Catherine the Great: Portrait of a Woman

Traitor King: The Scandalous Exile of the Duke & Duchess of Windsor

Eleanor of Aquitaine: A Life (Ballantine Reader's Circle)

Endgame: Inside the Royal Family and the Monarchy's Fight for Survival—A Gripping Investigative Report with a Personal Touch, Witness the Turmoil of the British Monarchy

First Principles: What America’s Founders Learned from the Greeks and Romans and How That Shaped Our Country

Queens of the Conquest: England's Medieval Queens Book One

Elizabeth II: The Woman, the Queen, the Life

The Way We Were: Remembering Diana

The Other Side of the Coin: The Queen, the Dresser and the Wardrobe – An Intimate Biography by Her Majesty's Personal Advisor with Never-Before-Seen Photographs