Internationalization of higher education: Science mapping the knowledge base (1929–2022)

This study explores the internationalization of higher education (IHE) using science mapping techniques. We analyzed 5,253 articles and reviews published from 1929 to 2022, selected through a rigorous procedure. Findings indicate a rapid and significant increase in publications over the years, with more than tripling in the last decade only. Several patterns were revealed. Findings uncover that previously English-speaking nations are no longer the sole contributors to the internationalization research, as China-based researchers also increasingly contribute to the field's research output. The topical analysis revealed research clusters, highlighting the intellectual and conceptual structures of IHE. The resulting conceptual map revealed seven research clusters, (1) teaching and learning practices, (2) mobility and migration, (3) language policy, (4) study abroad, (5) transnational higher education, (6) international students and their experiences, and (7) macro-level policies and practices. Findings also demonstrate a diversification of and an increase in journals covering the IHE knowledge base. Copyright © 2025 European Association for International Education.