Delivering facts and findings from a variety of multilingual settings, this textbook systematically covers the diverse dimensions of multilingualism. As well as explaining key concepts, it examines the foremost issues of individual and societal multilingualism. It discusses topics from indigenous and minority languages to World Englishes and translanguaging, and from cross-linguistic influence to multilingual identity and the impact of multilingualism on healthy aging and considers the models and research methods used to underpin these discussions. Each chapter is supported by a comprehensive review of relevant research to reveal fresh perspectives, offer discerning insights and pose challenging possibilities for future exploration.

In twelve well-designed and highly readable chapters, this up-to-date textbook by Larissa Aronin provides many insightful perspectives for research and practice in the study of societal and individual multilingualism. Interdisciplinary in nature, a must-read and invaluable resource for students and instructors in different disciplines wanting to engage into understanding and acting upon what it means to use and learn multiple languages in our world today. -- Danièle Moore, Simon Fraser University, Vancouver & DILTEC, Sorbonne Nouvelle, Paris
With this long-awaited textbook on multilingualism from an interdisciplinary perspective Aronin presents a significant perspective of the many facets of multilingualism research. This well-written volume deserves to become foundation reading for all those who intend to get engaged more intensively with the complexity and dynamics of individual and social multilingualism. Highly recommended. -- Ulrike Jessner-Schmid, Universität Innsbruck

Muiris O Laoire, Professor of Language Revitalisation Studies, University of Auckland.