The Wisdom of Crowds -- The Difference Difference Makers: Waggle Dances, the Bay of Pigs, and the Value of Diversity -- Monkey See, Monkey Do: Imitation, Information Cascades, and Independence -- Putting the Pieces Together: The CIA, Linux, and the Art of Decentralization -- Shall We Dance?: Coordination in a Complex World -- Society Does Exist: Taxes, Tipping, Television, and Trust -- Traffic: What We Have Here Is a Failure to Coordinate -- Science: Collaboration, Competition, and Reputation -- Committees, Juries, and Teams: The Columbia Disaster and How Small Groups Can Be Made to Work -- The Company: Meet the New Boss, Same as the Old Boss? -- Markets: Beauty Contests, Bowling Alleys, and Stock Prices -- Democracy: Dreams of the Common Good.