Intro -- Contents -- List of Figures -- Series Editor’s Introduction -- Preface -- Acknowledgments -- 1 Introduction: Decoding the Social World -- 1.1 Communication and Its Metaphors -- 1.2 The Social Cryptogram -- 1.3 Vast National Barometers -- 1.4 The Unpredictability of Social Life -- 1.5 Reasons and Passions -- 1.6 Book Outlook -- 2 Old Puzzles, New Evidence -- 2.1 The Law of Unintended Consequences -- 2.2 Self-Fulfilling and Self-Defeating Prophecies -- 2.3 Cumulative Effects -- 2.4 The Power of Communication -- 2.5 Why Focus on the Unintended? -- 3 The Effervescence of Collective Behavior -- 3.1 The Nature of Social Facts -- 3.2 The Rhythms of Communication -- 3.3 The Dynamics of Collective Attention -- 3.4 Unpacking Collective Effervescence -- 3.5 Collective Behavior Rehashed -- 4 The Social Logic of Influence -- 4.1 The Contagion Metaphor -- 4.2 Milling, Herding, and Wildfires -- 4.3 Exposure and Reference Groups -- 4.4 The Double Edge of Contagion -- 4.5 The Unpredictable Paths of Influence -- 5 Networks and Social Distance -- 5.1 Network Chains -- 5.2 Structure and Navigation -- 5.3 Components, Communities, and Cores -- 5.4 Dynamics and Layered Connectivity -- 5.5 Network Interventions -- 5.6 Hidden Architectures -- 6 Communication in Space -- 6.1 Collective Maps -- 6.2 Redefining Boundaries -- 6.3 Selection Bias and Digital Gaps -- 6.4 Cities as Laboratories -- 6.5 Measurement and Representation -- 7 Designing Policy and Action -- 7.1 Crowdsourced Problem Solving -- 7.2 Algorithms and Decision Making -- 7.3 The Two Sides of Privacy -- 7.4 New Forms of Activism -- 7.5 Networked Governance -- 8 Conclusions: Questions for Now and the Future -- 8.1 Which Form of Critical? -- 8.2 Unintended Effects or Collateral Damage? -- 8.3 What to Archive and Retrieve? -- 8.4 How to Control Networks? -- 8.5 When Is the Code Cracked? -- References -- Index -- .