William A. Joseph is Professor of Political Science at Wellesley College and an Associate in Research of the John King Fairbank Center for Chinese Studies at Harvard University. He is the author of The Critique of Ultra-Leftism in China (1984) and editor or coeditor of New Perspectives on the Cultural Revolution (1991), China Briefing (1991, 1992, 1994, 1997), The Oxford Companion to Politics of the World (2nd ed., 2001), and Introduction to Comparative Politics: Political Challenges and Changing Agendas (8th ed., 2018).