The raw material
The Druids take shape
The Druids take over
The Druids take flesh
Iolo Morganwyg
Interlude : a pair of Williams
The apogee of the English Druids
Iolo's children
The downfall of the Druids
Druidic afterglow
The universal bond
Druids and archaeologists.
Blood and mistletoe : the history of the Druids in Britain by Ronald Hutton. ISBN 9780300144857. Published by Yale University Press in 2009. Publication and catalogue information, links to buy online and reader comments.