This paper defines the European Students' Union (ESU) opinions on the topics related to internationalisation and learning mobility. This document is both an advancement and a cohesive overview of ESU's existing positions on internationalisation and mobility in higher education. This paper offers both definitions and elaborations on relevant policy areas, and should function as a framework and a guide for both students and other actors in higher education across Europe. This Policy Paper was adopted at the European Students' Union Board Meeting 76 in Sofia, Bulgaria.