Co-published with The International Research Foundation for English Language Education (TIRF), the ninth volume in the Global Research on Teaching and Learning English series presents research on the practice of integrating content and language in diverse contexts where English is used as a medium of instruction. With chapters written by TIRF Doctoral Dissertation Grant awardees and other scholars, the volume offers an overview of a wide range of methodological approaches to teaching content in English to English learners and examines factors that impede or contribute to effective instruction. The chapters include findings from original empirical research, as well as overviews of existing research and model programs, providing valuable insights and taking into account a multitude of contextual features. Offering up-to-date research on integrating language and content at the primary, secondary, and postsecondary levels, this book familiarizes readers with the latest advances in theory and practice. It is a key text for teacher education courses for preservice teachers, a resource for professional development programs for practicing teachers, and a useful reference for researchers.