The document provides an overview of public policy as a field of study. It discusses that policy science emerged as a discipline in the post-World War II era in response to the growing complexity of governance. While early studies focused on political theory or specific institutions, policy science aimed to blend empirical examination with normative questions around justice and social development. The document also examines definitions of public policy by various scholars and notes it is a complex, dynamic process involving goals, decisions by multiple actors, and both action and non-action by governments.