Giovanni Arrighi (1937-2009) was Professor of Sociology at Johns Hopkins University. His books include The Long Twentieth Century, Adam Smith in Beijing, and, with Beverly Silver, Chaos and Governance in the Modern World System. His work has appeared in many publications, including New Left Review-who published an interview on his life-long intellectual trajectory in March-April 2009, and an obituary in Nov-Dec 2009-and there are more accounts on his memorial website.