The purpose of producing an English-language book on the institutional modifications of the Italian form of state ten years after the review of Title V - Part II of the Italian Constitution is to describe these developments for an audience that goes well beyond the national boundaries. The fifteen articles that make up the book discuss the birth and evolution of Italian regionalism (including those regions with Special Statutes) as well as the reforms of 1999-2001, especially with regard to autonomy in defining regional statutes, regional forms of government and regulatory and administrative powers. These are subjects on which there is by now an abundant body of constitutional case law, which is extensively referred to by the articles. The role of the regions vis-à-vis the local bodies and vis-à-vis the European and international order is also discussed, as the right to negotiate with foreign powers has now been conferred on the regions. Lastly, the volume presents contributions on regional finance and on the new law on fiscal federalism, as well as on regional powers in the area of health and welfare.