The grammatical phenomenon of "control" subsumes a variety of cases where an understood argument of a complement or adjunct clause is related to an explicit element occurring elsewhere in the sentence. The control phenomenon, though familiar from many languages, and widely discussed, has remained a persistent and controversial topic in grammatical analysis. This volume presents nine new, theoretical studies of control. The authors explore the subject matter across a range of languages and constructions, in several different frameworks, and from a variety of perspectives, including syntax, semantics, psycholinguistics and historical lingustics. The articles in this collection offer a stimulating introduction to the spectrum of issues in control theory and their bearing on technical linguistics today.