If ever there were a timely book, this is it. Today, with new technologies transforming the field, we teach and study languages amid deep uncertainty. Our only hope of keeping up is to continue questioning the very nature of multilingualism and the impact language learning has on culturally diverse individuals around the world.Kapitolina Fedorova, Full Professor of Russian Studies, University of Tallinn, EstoniaThe sixth edition of Second Language Learning and Language Teaching offers a comprehensive and accessible overview of key theories and practices in second language acquisition. Authored by renowned scholars Vivian Cook and Dick Smakman, the book bridges the gap between research and classroom application, making it an essential resource for language teachers and students alike. It includes up-to-date insights into contemporary issues in language learning. I plan to actively use this book in my own classes when engaging students in discussions about second language teaching. Its content aligns perfectly with my approach of combining theoretical foundations with the development of practical teaching skills in the field of second language education.Giuli Shabashvili, Associate Professor of Linguistics, Tbilisi State University, Georgia