Margaret Gilbert is professor of philosophy at the University of Connecticut and the author of On Social Facts (1989).

Chapter 1 Introduction: Two Standpoints Chapter 2 The Personal and the Collective Part 3 Part I. Rationality, Coordination, and Convention Chapter 4 Rationality and Salience Chapter 5 Rationality, Coordination, and Convention Chapter 6 Notes on the Concept of a Social Convention Chapter 7 On Language and Convention Chapter 8 Game Theory and Convention Part 9 Part II. Sociality: Introducing Plural Subjects Chapter 10 Walking Together: A Paradigmatic Social Phenomenon Chapter 11 Modelling Collective Belief Chapter 12 Fusion: Sketch of a "Contractual" Model Chapter 13 On the Question Whether Language Has A Social Nature: Some Aspects of Winch and Others on Wittgenstein Chapter 14 Group Languages and "Criteria" Chapter 15 More on Social Facts Part 16 Part III. Joint Commitment and Obligation Chapter 17 Agreements, Coercion, and Obligation Chapter 18 Is an Agreement an Exchange of Promises? Chapter 19 More on Collective Belief Chapter 20 Group Membership and Political Obligation Chapter 21 On Feeling Guilt for What One's Group Has Done