Includes bibliographical references (p. 615-633) and index.

Introduction : political arithmetick -- Raising Leviathan : the brutish world of Thomas Hobbes -- Lesser forces : the mechanical philosophy of matter -- The law of large numbers : regularities from randomness -- The grand ah-whoom : why some things happen all at once -- On growth and form : the emergence of shape and organization -- The march of reason : chance and necessity in collective motion -- On the road : the inexorable dynamics of traffic -- Rhythms of the marketplace : the shaky hidden hand of economics -- Agents of fortune : why interaction matters to the economy -- Uncommon proportions : critical states and the power of the straight line -- The work of many hands : the growth of firms -- Join the club : alliances in business and politics -- Multitudes in the valley of decision : collective influence and social change -- The colonization of culture : globalization, diversity, and synthetic societies -- Small worlds : networks that bring us together -- Weaving the web : the shape of cyberspace -- Order in Eden : learning to cooperate -- Pavlov's victory : is reciprocity good for us? -- Toward Utopia? : heaven, hell, and social planning -- Epilogue: Curtain call.