In this new book, Theory and Philosophy of Contemporary Law, Flávio Quinaud Pedron carries out a highly critical reflection on the study of three relevant theorists who discuss, from a linguistic, political and legal perspective, the conditions of possibility for the legitimacy of contemporary law: Ronald Dworkin with the Theory of Law as Integrity (Part I), Jürgen Habermas with the Discursive Theory of Law and Democracy (Part II), Klaus Günther and the Sense of Adequacy (Part III).