Book excerpt: Mark Tushnet excels in updating the Advanced Introduction to Comparative Constitutional Law. In this second edition Tushnet includes new material based on developments in practice and scholarship since the original edition's publication back in 2014. Topics which are given substantial additional attention include abusive constitutionalism, the idea of the constituent power, eternity clauses and unconstitutional amendments, recent developments in weak- and strong-form constitutional review, and expanded consideration of third generation rights. This title will appeal to those who fell in love with the first edition and those who are interested in learning more about Comparative Constitutional Law.