Native Roots: How the Indians Enriched America

Savages and Civilization: Who Will Survive?

Indian Givers: How Native Americans Transformed the World

Genghis Khan and the Making of the Modern World

Genghis Khan and the Quest for God: How the World's Greatest Conqueror Gave Us Religious Freedom

The Secret History of the Mongol Queens: How the Daughters of Genghis Khan Rescued His Empire

Emperor of the Seas: Kublai Khan and the Making of China

Emperor of the Seas: Kublai Khan and the Making of China

The History of Money