This edited book brings together chapters from diverse geographical and educational contexts to examine the question of transnationalism in English Language teacher education. While the activities that connect people, institutions and cultural practices across the borders of nation-states have gained interest in fields such as applied linguistics, TESOL and migration studies in recent years, there has been little research so far into how transnationalism intersects with language teacher education, and how existing practices can be better integrated into teacher education programmes. The authors fill this gap by introducing and examining existing transnational practices - including cross-cultural settings, study abroad programmes and online teacher education - then offering multiple dialogues on mobility of knowledge, practice and pedagogy in teacher education. This book will be of interest to language teachers, teacher educators, and students and scholars of applied linguistics, cross-cultural studies, and migration studies.