The third edition updates its predecessor by including material on important recent developments. In addition to general updating on matters such as gender equality, federalism and affirmative action it expands the treatment of dialogic forms of judicial review. The treatment of constitution-making has been expanded to include discussions of popular participation and of the possibility that constitutional amendments might be held unconstitutional. The book continues to have a substantial discussion of the treatment of emergencies in the world's constitutional systems. The authors also reorganized, updated and expanded:* The chapters on courts and constitutionalism.* Materials on social and economic rights in the last chapter.* The discussion of freedom of expression.