Policy Studies courses are being increasingly offered in public policy schools, political science departments, public administration programmes, and elsewhere. There seems to be a consensus that a basic core of policy courses should deal with policy methods, the policy process, and policy substance. Each can be a course in itself for a term apiece or longer, or as parts of a larger course. This book is designed to deal with the basic theoretical issues in public policy analysis. Those basic issues can be divided into conceptual theory, theory of knowing, casual theory and normative theory.