Christina Boswell is Senior Lecturer in Politics at the School of Social and Political Studies, University of Edinburgh.

• List of figures and tables; Acknowledgements; Part I. The Political Functions of Knowledge: 1. The puzzle: explaining the uses of knowledge; 2. Instrumental knowledge and organizational legitimacy; 3. The symbolic functions of knowledge; 4. The uses of knowledge in public policy debates; Part II. The Case of Immigration Policy: 5. The politics of immigration in Germany and the UK; 6. The British Home Office; 7. The German Federal Office for Migration and Refugees; 8. The European Commission; 9. Organizations and cultures of expertise; Part III. Extending the Theory: 10. Knowledge and policy; References; Index.

'… this is an outstanding work of social science. As a result of its empirical and, above all, its theory-building ambitions, the volume deserves a wide readership not only of migration scholars but of all social scientists with an interest in policy processes and the role of knowledge in those processes … It cannot be recommended highly enough.' James Hampshire, Journal of Ethnic and Migration Studies

Christina Boswell is Senior Lecturer in Politics at the School of Social and Political Studies, University of Edinburgh.

• List of figures and tables; Acknowledgements; Part I. The Political Functions of Knowledge: 1. The puzzle: explaining the uses of knowledge; 2. Instrumental knowledge and organizational legitimacy; 3. The symbolic functions of knowledge; 4. The uses of knowledge in public policy debates; Part II. The Case of Immigration Policy: 5. The politics of immigration in Germany and the UK; 6. The British Home Office; 7. The German Federal Office for Migration and Refugees; 8. The European Commission; 9. Organizations and cultures of expertise; Part III. Extending the Theory: 10. Knowledge and policy; References; Index.

'… this is an outstanding work of social science. As a result of its empirical and, above all, its theory-building ambitions, the volume deserves a wide readership not only of migration scholars but of all social scientists with an interest in policy processes and the role of knowledge in those processes … It cannot be recommended highly enough.' James Hampshire, Journal of Ethnic and Migration Studies

Christina Boswell is Senior Lecturer in Politics at the School of Social and Political Studies, University of Edinburgh.

• List of figures and tables; Acknowledgements; Part I. The Political Functions of Knowledge: 1. The puzzle: explaining the uses of knowledge; 2. Instrumental knowledge and organizational legitimacy; 3. The symbolic functions of knowledge; 4. The uses of knowledge in public policy debates; Part II. The Case of Immigration Policy: 5. The politics of immigration in Germany and the UK; 6. The British Home Office; 7. The German Federal Office for Migration and Refugees; 8. The European Commission; 9. Organizations and cultures of expertise; Part III. Extending the Theory: 10. Knowledge and policy; References; Index.

'… this is an outstanding work of social science. As a result of its empirical and, above all, its theory-building ambitions, the volume deserves a wide readership not only of migration scholars but of all social scientists with an interest in policy processes and the role of knowledge in those processes … It cannot be recommended highly enough.' James Hampshire, Journal of Ethnic and Migration Studies