From a comparative perspective, this book analyzes constitutional change in federal and decentralizing countries. The book identifies structures, processes, and strategies which have proven to favor successful constitutional amendment. Thereby, the book enables public officials, scholars, and students to learn from the constitutional reform experiences of other federal democracies and from practical suggestions on how future reforms could be designed. Contents include: The Relevance of Constitutional Change * Constitutional Reform in "Co-operative" Federalism * Constitutional Reform in Federal Systems with Divided Societies * Devolution and Regionalisation in Federalising States * Processes of Ratification * Evolution after a Constitutional Reform.