Bringing together papers from various subfields of theoretical linguistics, this volume gives a representative glimpse of current research on form and function in grammar. Its overarching topic is as old as it is hot: the relation between the major clause types as determined in syntax, and their canonical or idiosyncratic roles in discourse as characterized in pragmatic terms. Though none of the papers addresses this topic in its full breadth, they can all be seen to make their specific contributions to it, scrutinizing the pertinent aspects of the grammatical interfaces and elaborating detailed case studies. The first part of this collection comprises three papers (by Asher, Portner, and van Rooy & Franke) devoted to the semantics/pragmatics interface. The second part, with contributions by Rizzi, Saito, and Belletti, deals with the question of how the constitution of sentence types can be related to properties of functional categories in the clausal periphery.The last four papers (Bošković, van Riemsdijk, Bauke & Roeper, Williams) concern the interaction of lexical elements and clausal functional categories, revealing unexpected parallels between clause structure and the internal structure, particularly in lexical categories.