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. 'Taken collectively, the contributions in this volume are impressive and illuminating. They serve as a testament to Blackburn's impact on the historical study of northwestern Europe in the early medieval period. They also highlight the dynamic economic life of a period often considered economically stagnant.' Medieval Review