This second volume builds upon the insights of volume 1, which includes national reports on the use of constitutional interpretation. In volume 2, the analysis is extended beyond the national context, discussing its use in the supranational and international context, such as in EU law or in the practice of the ECtHR and the IACtHR. It looks at constitutional amendments, global constitutionalism, the impact of unwritten constitutional provisions. The volume is rounded off by a comparative analyse, which formulates universally applicable insights. Together with volume 1, this book fills an important gap in legal scholarship and sets the stage for cross-national discourse.