Recommended Reading
Star.Ships: A Prehistory of the Spirits by Gordon White (2016). Note: do not pay Amazon’s prices. Order directly from Scarlet Imprint.
Britain BC: Life in Britain and Ireland Before the Romans by Francis Pryor (2004)
Ireland: A Short History by Joseph Coohill (2000)
A Concise History of Wales by Geraint H. Jenkins (2007)
A History of Scotland by J.D. Mackie (1964)