Political science is a social science discipline concerned with the study of the state, nation, government, and politics and policies of government. Aristotle defined it as the study of the state. It deals extensively with the theory and practice of politics, and the analysis of political systems and political behaviour, culture. Political scientists “see themselves engaged in revealing the relationships underlying political events and conditions, and from these revelations they attempt to construct general principles about the way the world of politics works.” Political science intersects with other fields; including economics, law, sociology, history, anthropology, public administration, public policy, national politics, international relations, comparative politics, psychology, political organization, and political theory. Political theory is more concerned with contributions of various classical thinkers such as Aristotle, Niccolò Machiavelli, Cicero, Plato and many others. Comparative politics is the science of comparison and teaching of different types of constitutions, political actors, legislature and associated fields, all of them from an intrastate perspective. International relations deals with the interaction between nation-states as well as intergovernmental and transnational organizations. This is an immensely helpful book for students starting their own research... an excellent introduction to the comparative method giving an authoritative overview over the research process.