The Routledge Handbook of the History and Sociology of Ideas establishes a new and comprehensive way of working in the history and sociology of ideas, in order to obviate several longstanding gaps that have prevented a fruitful interdisciplinary and international dialogues. Pushing global intellectual history forward, it uses methodological innovations in the history of concepts, gender history, imperial history, and history of normativity, many of which have emerged out of intellectual history in recent years, and it especially foregrounds the role of field theory for delimiting objects of study but also in studying transnational history and migration of persons and ideas. The chapters also explore how intellectual history crosses the study of particular domains: law, politics, economy, science, life sciences, social and human sciences, book history, literature, and emotions.