Perspectives on Negation and Polarity Items contains a selection of papers on the semantics, acquisition and licensing behavior of negation. Negation, being one of the prevalent features of any human language, has many facets of interest to linguists, psychologists and philosophers alike. In recent years, much attention has been paid to the complicated distributional patterns of polarity items. Many of the contributions in this volume are devoted to the study of one or more of these items in langages such as English (Laurence Horn, Anita Mittwoch, Chris Kennedy), Dutch (Jack Hoeksema and Hotze Rullmann, Henny Klein, Gertjan Postma), German (Gabriel Falkenberg), Hindi (Utpal Lahiri) and Greek (Anastasia Giannakidou). In addition, some general issues surrounding negation are addressed, such as the characterization of the notion "strength of negation" (Jay Atlas), the problem of NEG-raising (Lucia Tovena), the interaction of negation and modality (Johan van der Auwera) and the acquisition of negation (Kenneth Drozd).