For abbreviations, please see clause 2; for definitions of other terms, please see clause 5 on concepts and model.Figure 1 illustrates a broad view of learner mobility from different points of view.First, European and National policy stakeholders - as the main initiators and promoters of European and cross-cultural and trans-national learning, education and training (LET) policies and instruments - could be imagined as being above the diagram, looking down at the whole. They are represented here looking in from all sides of the diagram.Second, there are the three other stakeholder groups: (1) Learners, (2) Employers, and (3) LET organisations offering learn