Bruce Campbell is Emeritus Professor of Medieval Economic History at Queen's University, Belfast. He belongs to the Academia Europaea, Academy of Social Sciences, British Academy, Royal Historical Society and Royal Irish Academy, and is a former fellow of the Wissenschaftskolleg zu Berlin. A graduate of the Universities of Liverpool and Cambridge, his teaching at Queen's from 1973 to 2010 embraced the economic and environmental history of Britain and Ireland over the last millennium. He is the author of English Seigniorial Agriculture 1250 1450 (2000), co-author of A Medieval Capital and Its Grain Supply: Agrarian Production and Its Distribution in the London Region c.1300 (1993), and England on the Eve of the Black Death: An Atlas of Lay Lordship, Land, and Wealth, 1300 49 (2006), and author of three collections of essays: The Medieval Antecedents of English Agricultural Progress (2007), Field Systems and Farming Systems in Late Medieval England (2008), and Land and People in Late Medieval England (2009). His research harnesses the wealth of detailed statistical information contained in England's extensive medieval archives to shed systematic light on the country's economic development when it was still comparatively poor, under-developed and prone to subsistence crises and famine. He is currently completing the manuscript of his 2013 Ellen McArthur Lectures for publication by Cambridge.