Book excerpt: Extraction has traditionally been one of the main topics in generative grammar, and it retains this status in current variants of the theory. German provides a good testing ground for traditional as well as current theories of extraction. The nine contributions to this volume document the recent lively discussions on the adequate analyses of extraction constructions, on the impact of extraction on semantic interpretation, and, above all, on the question of which constructions are to be analysed as extractions and which not. Uli Lutz gives an overview of extraction theory. Marga Reis challenges the standard analysis of extraction from verb-second clauses and opts for a parenthetic analysis. Franz d’Avis confronts current approaches to wh-islands with the facts in German and investigates the semantic properties of topicalization from wh-clauses. Sigrid Beck derives various negative island effects from a constraint on Logical Form. Jürgen Pafel relates the differences between two kinds of extraction from noun phrases to the structure of the noun phrases. Daniel Büring and Katharina Hartmann argue for the traditional analysis of extraposition as rightward movement, based on a detailed comparison with alternative accounts. Gereon Müller derives the peculiar restrictions on extraposition from a theory of improper movement. Hubert Haider defends his analysis of extraposition as a base-generated construction against his critics. Chris Wilder develops a minimalist account of extraposition and takes extraposition and coordination ellipsis to be instances of the same process.