The volume explores the transformative impact of English as a medium of instruction in higher education across Eastern Europe. It delves into the motivations, challenges, and strategies of institutions adopting EMI, highlighting its role in fostering internationalisation, enhancing academic mobility, and promoting global competitiveness. Drawing from diverse range of perspectives, the book presents voices from educators and administrators, providing a comprehensive understanding of EMI’s implications on teaching practices, curriculum design and student outcomes. It addresses critical issues, such as linguistic diversity, cultural identity and the balancing act between local languages and English, ensuring a nuanced discussion of the benefits and drawbacks of this educational shift. It illustrates the unique context of Eastern European institutions, as well as offering valuable insights applicable worldwide. With its clear structure and engaging narrative, it appeals students and scholars interested in English as a medium of instruction, language education, multilingualism, sociolinguistics, and applied linguistics.