Political philosophy, or political theory, is the study of topics such as politics, liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why (or even if) they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it should take and why, what the law is, and what duties citizens owe to a legitimate government, if any, and when it may be legitimately overthrown, if ever. In a vernacular sense, the term "political philosophy" often refers to a general view, or specific ethic, political belief or attitude, about politics, synonymous to the term "political ideology". Political philosophy is considered by some to be a sub-discipline of political science; however, the name generally attributed to this form of political enquiry is political theory, a discipline which has a closer methodology to the theoretical fields in the social sciences - like economic theory - than to philosophical argumentation - like that of moral philosophy or aesthetics. This book is designed to be a general overview of the topic and provide you with the structured knowledge to familiarize yourself with the topic at the most affordable price possible. The level of discussion is that of Wikipedia. The accuracy and knowledge is of an international viewpoint as the edited articles represent the inputs of many knowledgeable individuals and some of the most currently available general knowledge on the topic based on the date of publication.