“This book offers a comprehensive overview and unique perspectives of language in a globalised world from social justice perspectives, supporting ideas with interview data and personal experiences, and is thus a practical and timely guide to the field of multilingualism and sociolinguistics. With a reader-friendly and easy-to-understand writing style and thought-provoking discussion and questions, the book is much needed for novice and seasoned researchers in sociolinguistics, applied linguistics and education alike.” (Jiayi Xiao and Weiping Wu, Sociolinguistic Studies, Vol. 17 (1-3), 2023)