Mapping the Left Periphery, the fifth volume in "The Cartography of Syntactic Structures," is entirely devoted to the functional articulation of the so-called complementizer system, the highest part of sentence structure. The papers collected here identify, on the basis of substantial empirical evidence, new atoms of functional structure, which encode specific features that are typically expressed in the left periphery. The volume also submits the richly articulated CP structure to further crosslinguistic checking. The research presented here has led to the identification of new, important restrictions in the relative sequence of elements appearing in the left periphery.
With contributions from African languages, Chinese, Hungarian, Romance languages, and Italian dialects, Mapping the Left Periphery will be of interest to syntacticians working on comparative syntax, and more specifically on Romance grammar.

Ever since Chomsky's Barriers, functional heads have been the privileged object of research in generative linguistics. But over the last two decades, two rival approaches have developed. The cartographic project, as represented by the collections in this Oxford series, considers evidence for a functional head in one language as evidence for it in universal grammar. On the other hand, minimalist accounts tend to consider structural economy as literally involving as few heads as possible. In the present volume, some of the most influential linguists who have participated in this long-lasting debate offer their recent work in short, self contained case studies. The contributions cover all the main layers of recently studied syntactic structure, including such major areas of empirical research such as grammaticalization and language change, standard and non-standard varieties, interface issues, and morphosyntax. Functional Heads attempts to map aspects of syntactic structure following the cartographic approach, and in doing so demonstrate that the differences between the cartographic approach and the minimalist approach are more apparent than substantial.