Book excerpt: The law of immunity of states, of international organisations, and of public officials is one of the most important and most controversial topics of international law. The book consists of five parts: ‘State Immunity – National Practice’; State Immunity before the ICJ – The case Germany v Italy; ‘Commercial Activities and State Immunity’; ‘Immunity and Impunity’; and ‘Immunities of International Organisations’. Although immunities are in principle firmly anchored in international law, their precise legal implications are often unclear. The book takes up a number of new trends and challenges in this field and assesses them within the framework of global constitutionalism and multilevel governance. Contains chapters in both English and French.