Political science is a sub-field of social sciences which deals with the study of governments, political policies, and political behavior. The various sub-fields included in this field are public policy, international relations, political methodology, comparative politics, public administration, etc. This book is designed in such a way that it provides an in-depth knowledge about the various concepts and theories related to this subject. It is a compilation of chapters that discuss the most vital aspects and emerging trends in the field of political science. It is appropriate for students seeking detailed information in this area as well as for experts.