This book offers a collection of original papers showing how Higher education institutions have coped with changing the language of instruction. It points out that Higher education institutions have undergone radical change in the past decades; of which the shift to English-medium instruction, as well as bi- or plurilingual programmes, is one notable example. The papers comprise new research on teaching and learning through an additional language, and its impact on professional development for university teachers, programme and course development, as well as quality assurance. The articles span different international contexts, and provide education developers, university teachers, educational administrators, language experts, and others, with global perspectives on the professional practices of university teachers.