The issue of regionalization has become a crucial point in the process of European Unification. The region has attracted a wider audience, but the term remains attached to a variety of different definitions linked to spatial, historical, social, political and cultural discourses. The macro trends of globalization, the debate on political steering and the sociological perspective on the regionalization of life worlds however fit together. In this book, some links between the different understandings of the region are presented with empirical and theoretical international examples.