This volume offers an overview of the context of internationalisation in which plurilingualism becomes a strategic axis for universities and in which university language centres serve as the key instrument to implement this process. It focuses on three key areas in which language centres are working together with governments across Europe, namely: language policy and internationalisation; specific training for the university community; and language testing and accreditation. The contributors to this book are all policy makers, instructors or evaluators from university language centres involved in the internationalisation of their institutions through languages. They teach and evaluate not only ‘regular’ students, but students with very specific needs, such as lecturers delivering content courses in English, students in mobility programmes or administrative staff in contact with international students. The book also includes the presentation of the first national higher education language policy in Europe, developed by the Language Policy Commission of the Board of Rectors of Spanish Universities and endorsed by all public and private universities in Spain.