The ARL – Academy for Territorial Development in the Leibniz Association is the central platform and professional voice of spatial science research and practice. As a social research infrastructure, we bring together recognised experts on socially relevant topics. We provide our members and all participants in our network with the human and financial resources necessary for inter- and transdisciplinary cooperation, the synthesis of spatial knowledge and the effective transfer of results. In this way, we tackle current issues of sustainable spatial development in an integrated, multidisciplinary and practice-orientated manner. This inter- and transdisciplinary approach characterises all our activities, events and publications with the aim of stimulating forward-thinking change and actively shaping the process of spatial transformation. We document the results of this exchange and cooperation between disciplines and between science and practice as appropriate for specific target groups and make these publications freely accessible to all interested parties.