Barbarians to Angels: The Dark Ages Reconsidered

The Fall of Rome: And the End of Civilization

Bourgeois Equality: How Ideas, Not Capital or Institutions, Enriched the World

The Inheritance of Rome: Illuminating the Dark Ages 400-1000 (The Penguin History of Europe)

Heart of Europe: A History of the Holy Roman Empire

Empires and Barbarians: The Fall of Rome and the Birth of Europe