Institutional Change and European Integration explains the reasons for the triumph of institutions in contemporary society. The book examines European integration and the enlargement of the European Union from the perspective of institutionalism. It provides a basis for Bulgaria's position in the work of the Convention on the Future of Europe. The book is of interest to those whose practice is related to the unification of Europe. It is also aimed at teachers, researchers, and students of European studies, sociology, political science, international relations, and economics.