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,