Sunstein's books include "After the Rights Revolution" (1990), "The Partial Constitution" (1993), "Democracy and the Problem of Free Speech" (1993), "Legal Reasoning and Political Conflict" (1996), "Free Markets and Social Justice" (1997), "One Case at a Time" (1999), "Risk and Reason" (2002), "Why Societies Need Dissent" (2003), "Laws of Fear: Beyond the Precautionary Principle" (2005), "Radicals in Robes: Why Extreme Right-Wing Courts Are Wrong for America" (2005), "Are Judges Political? An Empirical Analysis of the Federal Judiciary" (2005), "Infotopia: How Many Minds Produce Knowledge" (2006), and, co-authored with Richard Thaler, "Nudge: Improving Decisions about Health, Wealth, and Happiness" (2008).