The Ancient Celts

Celts: The History and Legacy of One of the Oldest Cultures in Europe

The Celts: A Very Short Introduction (Very Short Introductions)

Britain Begins

The Discovery of Middle Earth: Mapping the Lost World of the Celts

Druids: A Very Short Introduction (Very Short Introductions)

Vikings, War, and the Fall of the Carolingians: A Critical English Translation of the Annals of Saint Vaast

Celtic Gods and Heroes (Celtic, Irish)

The Mammoth Book of Celtic Myths and Legends

By Steppe, Desert, and Ocean: The Birth of Eurasia

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