Many graduates of a master of political science will have a career as a policy professionals: working as political advisor, civil servant or consultant or policy analyst. Policy professionals can have a considerable impact on policy decisions. When preparing political decisions, for example, they determine the menu of choice. When implementing political decisions, they can use front-line discretion to align these decisions with their preferences. In this course, we study the role of policy professionals in political-decision making. We will discuss what the goals of public policy are; how problems are defined; and how soultions are crafted.