Knowledge is often thought of as something that we each individually have, something inside our own minds. But our knowledge depends on other people’s testimony and expertise. And what we know depends on what our society makes it possible for us to know, either formally or informally through social norms and practices that suppress some ideas and privilege others. The philosophical study of the social dimension of knowledge is called Social Epistemology. This volume gathers experts in the field from across the world to give their perspectives on it.