The course consists of two parts. The first part aims to provide the linguistic and methodological tools in order to understand the phenomenon of politics. The second part proposes a reflection on the key words of the philosophical-political vocabulary (state, politics, power, authority, violence, consensus, political order, general interest, nation, freedom, justice). Particular emphasis will be given to the analysis of the concept and theories of democracy by referring to the Greek model, Rousseau's model, liberal democracy, and democracy in the globalized world. The course will end with the analysis of some of the major problems that politics today is called to solve.