I have been looking for as much information as I can get about the pre-Christian roots of European people's ranging from stone/ice age into the Romanization of the Celts & Germanic people into the first Millenia AD. Tom's work is excellent, drawing on archaeology and anthropology to help construct an impressively cohesive history for these topics, which have little to no written sources to draw on. I understand myself better to know about these ancestors, like a forgotten root is now being nourished and nurtured.