Book excerpt: This book discusses the tradition and the institutions of federalism in the Eastern, Central and Western European countries and deals with many innovative issues such as multi-level-governance, network government, devolution, subsidiarity, asymmetry and functionalism. An assumption of the book is that the European enlargement and the new European constitution could result in two major evolutions in the future: one is a full federal state, the other is an institutional response to the effects of the technological innovations of our epoch.