Dr. Xuesong Gao is an EAL teacher educator at the School of Education, University of New South Wales, Australia. He has been involved in language teacher education by directing teacher education programs and delivering professional development seminars on autonomous language learning, language learning strategy, 553 and reading for language teachers in a variety of contexts such as Hong Kong, mainland China, and Taiwan. His research interests include language learner autonomy, language policy, and language teacher education. Over the years, Dr. Xuesong has been promoting socio-cultural perspectives to understand language learners’ strategy use and language teachers’ professional development. His research has been funded by Research Grants Council (Hong Kong), Sumitomo Foundation (Japan), and the Standing Committee for Language Education and Research (Hong Kong). Relevant publications have appeared in the journals such as English Language Teaching Journal, International Journal ofBilingual Education and Bilingualism, Journal of Multilingual and Multicultural Development, Language Teaching Research, Studies in Higher Education, System, Teaching and Teacher Education, and TESOL Quarterly. He coedits System: An International Journal of Educational Technology and Applied Linguistics for Elsevier and also the English Language Education book series (with Professor Chris Davison) for Springer. In addition, he serves on the editorial boards of journals including Applied Linguistics Review, Asia Pacific Education Researcher, Journal of Language, Identity and Education, and Teacher Development. Dr. Xuesong was the Faculty’s Outstanding Young Researcher (2015) at the Faculty of Education, The University of Hong Kong, a corecipient of TESOL Award for an Outstanding Paper on NNEST issues (2012–2013), and has been named as one of 30 Up and Coming at TESOL International’s 50th anniversary.