This volume collects the recent published articles of Guglielmo Cinque of the University of Venice, one of the world's top linguists. The book is divided into two sections, the first on restructuring, a central topic in Romance syntax and with connections to other language groups as well. The second part focuses on the consequences of treating clausal functional heads as members of a universal hierarchy in the domain of morphosyntax, offering a new perspective on many intricate problems arising in a variety of natural languages.