Book excerpt: This volume consists of over twenty new essays written by friends, colleagues and pupils of Dr Mark Blackburn, Keeper of Coins and Medals at the Fitzwilliam Museum and Reader in Anglo-Saxon, Norse and Celtic at the University of Cambridge, who died on 1 September 2011. As well as a fitting tribute to a remarkable scholar, the collection constitutes a major body of research which will be of long-term value to scholars with an interest in the history of early medieval Europe.