The Settling of the Manor of Tara

Example map of Celtic, Germanic and Iberian tribes before Roman expansion

Proto-Celtic Dictionary

Animism: Respecting the Living World by Graham Harvey

The Book of the Cailleach: Stories of the Wise Woman Healer by Gearóid Ó Crualaoich

The Britons (The Peoples of Europe) By Christopher A. Snyder

Twilight of the Godlings: The Shadowy Beginnings of Britain's Supernatural Beings by Francis Young

Blood and Mistletoe: The History of the Druids in Britain by Ronald Hutton

Pagan Religions of the Ancient British Isles: Their Nature and Legacy by Ronald Hutton

Scotland's Merlin: A Medieval Legend and its Dark Age Origins by Tim Clarkson

Ireland's Trees: Myths, Legends & Folklore by Niall Mac Coitir

Buile Suibhne. (The Frenzy Of Suibhne) Being The Adventures Of Subhne Geilt, A Middle Irish Romance by J. G. O'Keeffe

Seeds from the Wild Verge: Myth, Nature, and Theology in the Border Stream of Celtic Wisdom by Brendan Ellis Williams

Cunning-Folk and Familiar Spirits: Shamanistic Visionary Traditions in Early Modern British Witchcraft and Magic by Emma Wilby