Multilingualism and internationalization of higher education is a contemporary reality world-wide. Specifically, multilingualism in higher education is a multi-faceted issue that requires special attention and is important in language learning policy. Special professional and education training should be provided both to teachers and students in to raise their awareness about the benefits of multilingualism and multiculturalism, intercultural communication, equity and equality, inclusive teaching and learning, international collaboration, and more. Multilingual education can promote linguistic and cultural diversity, cognitive, effective, and social development, and can help to overcome monolingual bias and enrich learning and teaching experience in the higher education settings. This book provides insights in the field of multilingualism and multilingual education based on conceptual and empirical studies that will provide evidence in support of sustainable multilingualism in higher education. Topics covered will include language learning and teaching, language education policy, ethical issues of language teaching, equity, and equality, (digital) critical literacy, critical dialogue in academic settings, language attitudes and perceptions, code-switching and code-mixing, translanguaging, internationalization and customization of higher education, minority and immigrant students and instructors, and more. This book links theory with practice, to include the views of students, teachers, educators, language policy experts, scholars, and researchers and to contribute to the field of Applied Linguistics and Education.