This introduction to the policy process describes theoretical approaches in political science, sociology, anthropology, international relations and management. It examines (a) the dichotomy between policy-making and implementation; (b) the management of change; (c) the role of interest groups in the policy process; (d) ownership of the policy process; and (e) the narrowing of policy alternatives. The paper concludes with a 21-point check-list of 'what makes policy happen'. A glossary of key terms is provided.