The volume presents research that emerges from the 9th international Adult Education Academy (2022), which brings together researchers, students and practitioners from around the world. More than 80 participants from almost 20 different countries have exchanged, compared and expanded their individual knowledge and experience on adult learning and education. This volume assumes that globalisation affects national, regional and local levels of adult learning and education. Transformational relations are analysed through the lens of participation, sustainability and digitalisation. All contributions apply an international comparative research approach to empirically investigate these areas. This approach grounds on a set of rules and techniques, but also on a sensitivity with which we look at the world and its global needs while trying to understand.