Mythology of the British Isles by Geoffrey Ashe
The Celtic Empire by Peter Beresford-Ellis
The Celts by Nora Chadwick
Zalmoxis: The Vanishing God by Mircea Eliade
Meaning of Witchcraft by Gerald Gardner
Witchcraft Today by Gerald Gardner
Realm of the Ring Lords by Laurence Gardner
The Gods & Goddesses of Old Europe by Marija Gimbutas
Gods & Fighting Men by Lady Gregory
Cuchulain of Muirthemne by Lady Gregory
The Mabinogian by Charlotte Guest
Roots of Witchcraft by Michael Harrison
Practical Celtic Magic by Murry Hope
The Rise of the Celts (Vol.1) by Hubert
Greatness & Decline of the Celts by Hubert
The Picts & the Scots by Lloyd & Jenny Laing
Celtic Mytology & Religion by Alexander MacBain
Elements of the Celtic Tradition by Caitlin Matthews
The God of the Witches by Margaret Murray
The Witch-Cult of Western Europe by Margaret Murray
Practical Magic in the Northern Tradition by Nigel Pennick
The Royal Hordes: Nomad Peoples of the Steppes by E.D. Phillips
Everyday Life of the Pagan Celts by Anne Ross
Pagan Celtic Britain by Anne Ross
Phallic Worship by G. Ryley Scott
The Mysteries of Britain by Lewis Spence
Living Tribal Religions by H.W. Turner