The Philosopher and the Druids: A Journey Among the Ancient Celts

A Distant Mirror: The Calamitous 14th Century

Alexander the Great

The War in the West - A New History: Volume 1: Germany Ascendant 1939-1941

Julius Caesar

Achtung Panzer!

Julian: Rome's Last Pagan Emperor

On Democracies and Death Cults: Israel and the Future of Civilization

Hannibal: Rome's Greatest Enemy

Men of Mathematics

Oh My Gods: A Modern Retelling of Greek and Roman Myths

Rome and Jerusalem: The Clash of Ancient Civilizations

Celtic Spirituality: An Introduction to the Sacred Wisdom of the Celts

About Time: Surviving Ireland's Death Row

War, Women, and Druids: Eyewitness Reports and Early Accounts of the Ancient Celts

Celtic Art: The Methods of Construction

The World of Saint Patrick

Women and the Irish Revolution

Searching for Sappho: The Lost Songs and World of the First Woman Poet

Amsterdam: A History of the World's Most Liberal City