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This series offers a wide forum for work on contact linguistics, using an integrated approach to both diachronic and synchronic manifestations of contact, ranging from social and individual aspects to structural-typological issues. Topics covered by the series include child and adult bilingualism and multilingualism, contact languages, borrowing and contact-induced typological change, code switching in conversation, societal multilingualism, bilingual language processing, and various other topics related to language contact. The series does not have a fixed theoretical orientation, and includes contributions from a variety of approaches.

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Multilingualism is a typical aspect of everyday life for most of the world´s population; it has existed since the beginning of humanity and among individuals of all backgrounds. Nonetheless, it has often been treated as a variant of bilingualism or as a phenomenon unique to individual areas of study. The purpose of this book is to review current knowledge about the acquisition, use and loss of multiple languages using a multidisciplinary perspective, highlighting the common themes and stimulating insights that can emerge when multilingualism is viewed from different but related areas of investigation. The chapters focus on research evidence, showing that multilingualism is a complex phenomenon that involves a myriad of linguistic and extra-linguistic forces and that should be studied in its own right as evidence of human potential and capacity for language. The book is primarily addressed to students and scholars interested in deepening their understanding of the different facets of multilingualism, including the individual and societal circumstances that contribute to it, the cognitive and neural mechanisms that make it possible, and the dynamics involved in the acquisition, use and loss of multiple languages.

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Simona Montanari, California State University, Los Angeles, USA; Suzanne Quay, International Christian University, Japan

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