Cleft constructions occur across languages and are much analyzed in relation to syntax, semantics and pragmatics. Mika Kizu, working in a Principles and Parameters framework, with some consideration of the Minimalist Program, provides the first coherent account of cleft constructions in Japanese. She claims that the construction is analyzed on a par with topic constructions and some types of relative clause. One of the most interesting properties, the syntactic phenomenon of 'connectivity' is closely examined.