E. A. Wrigley is Emeritus Professor of Economic History at the University of Cambridge and co-founder of the Cambridge Group for the History of Population and Social Structure at the University of Cambridge. He is the author of several books, including Nineteenth-Century Society (Cambridge, 1972), Continuity, Chance and Change (Cambridge, 1988), Industrial Growth and Population Change (Cambridge, 1961), Poverty, Progress, and Population (Cambridge, 2004), The Population History of England, 1541 1871 (1981), People, Cities and Wealth (1987) and The Early English Censuses (2011).