From the classical state to the modern, how the public administration should provide services has been the subject of a constant debate. While this debate has continued on the one hand, the functions and structure of the public administration have continued to grow on the other. Sometimes, the political systems and the demands of people conflicted with each other, but the states still tried to meet the demands of people by using the public administration mechanism. The scientific analysis of this development and change process coincides with the end of the 19th century. The book provides information on traditional and modern public administration approaches, decision mechanisms in public administration, the application areas of strategic and performance management in the public sector, how ethics, transparency and accountability are applied in the public sector, and the effects of globalization and technology on public administration.