Bibliography
Though I can not recommend all of these books, I have to say I have sort knowledge from within their pages,
(some more than others!). They are listed in no particular order…..

PAGAN CELTIC BRITAIN - Dr. Anne Ross
THE DRUIDS - Peter Beresford Ellis
CELTIC HERITAGE - Alwyn and Brinley Rees
THE DRUIDS - Stuart Piggot
THE CELTS - Nora Chadwick
ANIMALS IN CELTIC LIFE AND MYTH - Miranda Green
THE GODS OF THE CELTS - Miranda Green
THE CELTIC WORLD - Miranda Green
THE TAIN - Thomas Kinsella
THE CELTS - Frank Delaney
THE WORLD OF THE CELTS - Simon James
THE ATLANTIC CELTS - Simon James
DICTIONARY OF CELTIC MYTHOLOGY - James MacKillop
CELTIC MYTHS AND LEGENDS - T W Rolleston
THE GALLIC WARS (de BELLO GALLICO) - Gaius Julius Caesar
THE APPLE BRANCH - Alexei Kondratiev
ROMAN BRITAIN - Peter Salway
THE SACRED ISLE - Daithi O HOgain
IRON AGE BRITAIN - Barry Cunliffe
ANAM CARA - John O Donohue
DICTIONARY OF CELTIC RELIGION AND CULTURE - Bernhard Maier
THE CELTIC HEROIC AGE - John T Koch
THE MABINOGION - ed. Lady C. Guest
THE HISTORY OF THE BRITAINS - Nennius
DE EXCIDIO BRITTANIAE ET CONQUESTU - Gildas
TALIESIN (SHAMANISM AND THE BARDIC MYSTERIES...ETC) by John Matthews