The branch of social science which focuses on the study of governance systems, political activities and constitutions is termed as political science. It is broadly classified into various sub-disciplines such as international relations, domestic politics, public administration and comparative politics. International relations deals with the interactions between various nations and intergovernmental organizations. Comparative politics studies the teachings of different types of constitutions and legislature in an intrastate perspective. Political science is an interdisciplinary field which draws on methods from the fields of social research, cognitive neuroscience and psychology. Theories such as structuralism, positivism, realism, pluralism, institutionalism, behaviouralism and rational choice theory are studied under it. Major areas of research in political science include public administration, public law, program evaluation and political philosophy. The topics included in this book on political science are of utmost significance and bound to provide incredible insights to readers. It covers in detail some existent theories and innovative concepts revolving around this field. Coherent flow of topic, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.