The fourth Yearbook of the Central and Eastern European Forum of Young Legal, Political and Social Theorists reassesses central concepts of modern constitutionalism between the poles of law and politics: separation of powers, constitutional review, and constitutional rights and obligations. Fourteen legal scholars and political scientists from the region contribute to interrelated debates in both disciplines. Two questions are particularly raised: How can the aforementioned concepts be understood? And: Which role do they play in current national and supra-national institutions? With regard to the second question, an essential part of the chapters focuses on current developments within the European Union and in post-socialist states of Central and Eastern Europe.