This edited volume focuses on the changing landscape of English language learning and teaching. It equips English language teachers with cutting-edge knowledge and developments in English language learning and teaching which they need to teach a diverse body of learners and instruct in a multipolar environment. The chapter contributors are among the high-standing and most knowledgeable scholars in the subject area who, in the four sections of the book, provide the reader with the recent developments, changes, and research in the sociocultural and socio-educational aspects of ELT, ELT teacher education and teacher identity, ELT paradigm shifts, and diversity in ELT. The book empowers English language teachers to teach in educational contexts where diversity, variety, complexity and fluidity are paramount. The book is a must-read for English language teachers, professionals, practitioners, researchers and ELT teacher trainees and trainers. It can also be used by TESOL, TESL/TEFL and Applied Linguistics students, researchers and lecturers at BA, MA and PhD levels.