Unlike most works in constitutional theory, which focus on the role of the courts, this book addresses the role of legislatures in a regime of constitutional democracy. Bringing together some of the world's leading constitutional scholars and political scientists, the book addresses legislatures in democratic theory, legislating and deliberating in the constitutional state, constitution-making by legislatures, legislative and popular constitutionalism, and the dialogic role of legislatures, both domestically with other institutions and internationally with other legislatures. The book offers theoretical perspectives as well as case studies of several types of legislation from the United States and Canada. It also addresses the role of legislatures both under the Westminster model and under a separation of powers system.