Kingsley Bolton is Professor Emeritus at Stockholm University, Sweden, and Honorary Professor at the Social Sciences Research Centre at The University of Hong Kong. He has published widely on English linguistics and the sociolinguistics of the Asian region. He is Co-Editor of the journal World Englishes and Executive Director of the International Association for World Englishes.

Werner Botha is Senior Lecturer at Flinders University, Australia. His current research focuses on language variation, educational linguistics, and the sociolinguistics of English in higher education in Singapore, South Africa, and China. He is Assistant Editor of the Wiley journal World Englishes.

Andy Kirkpatrick is Professor in Linguistics at Griffith University, Australia, and a Fellow of the Australian Academy of the Humanities. He is author of World Englishes: Implications for ELT and International Communication (2007) and Is English an Asian Language? (2020).