Taking both an empirical and a theoretical view of the prosodic phrasing of parentheticals in English, this book reviews the syntactic and prosodic literature on parentheticals along with relevant theoretical work at the syntax-prosody interface. It offers a detailed prosodic analysis of six types of parentheticals - full parenthetical clauses, non-restrictive relative clauses, nominal appositions, comment clauses, reporting verbs, and question tags, all taken from the spoken part of the British Component of the International Corpus of English.