Studied archaeology at the University of Cambridge, and completed PhD thesis (1979) on the prehistory of the French Pyrenees. Has held post-doctoral fellowships, at Liverpool and London, plus a J. Paul Getty postdoctoral fellowship in the History of Art and the Humanities. Devotes time to writing, editing and translating books on archaeology, plus occasional journalism and as much travel as possible. Main research interest is prehistoric art, especially rock art of the world, and most notably Palaeolithic art, as well as Easter Island. Led the team which, at his instigation, searched for and discovered the first Ice Age cave art in Britain (at Creswell Crags) in 2003.