Saints and Sinners: A History of the Popes
Fundamentos teóricos y prácticos de historia de la lengua española
The Science of Human Perfection: How Genes Became the Heart of American Medicine
Christian Beginnings: From Nazareth to Nicaea
Christians, Muslims, and Jesus
The Great Agnostic: Robert Ingersoll and American Freethought
Fragile Empire: How Russia Fell In and Out of Love with Vladimir Putin
The Persians: Ancient, Mediaeval and Modern Iran