This Reader introduces students of sociology and health care to the changing fields of medical knowledge and medical work. It provides a chronicle of research in the field of medical knowledge, medical work and health care over the past 25 years; and, summarises changes in how health care was delivered and how medical knowledge and practice were conceptualised over this period. Section introductions by the editors situate the articles within a wider body of literature. This is a valuable resource for student of sociology, social policy, social work, health policy or health care.