Sumário:Introduction: constitutional realism and the expanded province of constitutional law -- Mapping the field: The nature of soft law and of soft constitutional law: soft law. Soft constitutional law. Soft constitutional law in comparative perspective: U.K.: Distinguishing SCL and constitutional conventions. Sof constitutional law in the United States. Conclusion: SCL in Western liberal democracies -- Soft constitutional law in nonliberal Asian democracies: SCL in nonliberal strong states. Malaysia's Rukunegara declaration of 1971. Singapore's shared values. Factors facilitating resort to SCL in NLDs. The use of SCL in nonliberal Asian democracies. SCL and flexible interinstitutional rules of engagement. SCL as driver of economic policy and distributive justice. SCL as tool for promoting social integration and a national identity. SCL as tool for regulating citizen behavior and the interaction of "religion" and "politics".