This book provides a thorough analysis of the implementation of English as a Medium of Instruction (EMI) in Higher Education (HE) institutions in the North African region. It examines the challenges and opportunities associated with EMI in Maghreb and Mashreq countries considering factors like language proficiency, teaching methods, and the attitudes of both students and teachers towards using English as a medium of instruction. The book also explores the historical, cultural, and linguistic contexts that have influenced language ideologies in these countries and their impact on the adoption of EMI policies. It raises questions about the role and status of particular languages and how these impact the reception and implementation of EMI in various contexts. This book contributes to understanding language policy and planning, providing valuable insights for academics, educators, policymakers, and scholars with an interest in the region. It is also useful for academics, teachers and policymakers worldwide.