The Horse, the Wheel, and Language: How Bronze-Age Riders from the Eurasian Steppes Shaped the Modern World
Comparative Mythology
The American Heritage Dictionary of Indo-European Roots, Third Edition
By Steppe, Desert, and Ocean: The Birth of Eurasia
The Coming of the Greeks
Europe Between the Oceans: Themes and Variations, 9000 BC - AD 1000
Archaeology and Language: The Puzzle of Indo-European Origins
Ancestral Journeys: The Peopling of Europe from the First Venturers to the Vikings (Revised and Updated Edition)
The Solitary Druid: Walking the Path of Wisdom and Spirit