The most controversial essays from the bestselling author once called the most dangerous man in America?collected for the first time.

The nation's most-cited legal scholar who for decades has been at the forefront of applied behavioral economics, and the bestselling author of Nudge and Simpler, Cass Sunstein is one of the world's most innovative thinkers in the academy and the world of practical politics. In the years leading up to his confirmation as the administrator of the White House Office of Information and Regulatory Affairs (OIRA), Sunstein published hundreds of articles on everything from same-sex marriage to cost-benefit analysis. Conspiracy Theories and Other Dangerous Ideas is a collection of his most famous, insightful, relevant, and inflammatory pieces. Within these pages you will learn:

• Why perfectly rational people sometimes believe crazy conspiracy theories
• What wealthy countries should and should not do about climate change
• Why governments should allow same-sex marriage, and what the "right to marry" is all about
• Why animals have rights (and what that means)
• Why we "misfear," meaning get scared when we should be unconcerned and are unconcerned when we should get scared
• What kinds of losses make us miserable, and what kinds of losses are absolutely fine
• How to find the balance between religious freedom and gender equality
• And much more...

Cass Sunstein is a unique, controversial, and exciting voice in the political world. A man who cuts through the fog of left vs. right arguments and offers logical, evidence-based, and often surprising solutions to today's most challenging questions.