Charlemagne

The Crusades

Notre-Dame: A History

The Longest Day: The Classic Epic of D-Day

A Woman of No Importance: The Untold Story of the American Spy Who Helped Win World War II

The Barbarians

France: A History

Hagia Sophia: A History

The Desert Fathers: Sayings of the Early Christian Monks

Dominion: The Making of the Western Mind

Essential Gnostic Scriptures

Thomas Becket: Warrior, Priest, Rebel, Victim: A 900-Year-Old Story Retold

What It Means to Be Protestant: The Case for an Always-Reforming Church

Bonhoeffer: Pastor, Martyr, Prophet, Spy

Strange Fire: The Danger of Offending the Holy Spirit with Counterfeit Worship

They Like Jesus but Not the Church: Insights from Emerging Generations

A History of Christianity: The First Three Thousand Years

The Evil Creator: Origins of an Early Christian Idea

Christianity: A Global History

Malachi's Message to God's Church Today: A message to God's true Church