Urban transformations are of vital importance for the future of humanity and ecosystem Earth. New knowledge on the subject, dynamics and directions of urban change is dearly needed to shift current development trajectories in the global North and South towards sustainability. We invite contributions from any disciplines addressing these issues. The journal seeks to deepen and broaden current understandings theoretically, empirically and methodologically. There is a need for novel perspectives, drawing on ontological and epistemological multiplicity, inter- and transdisciplinary approaches. We welcome comparative research designs, as well as innovative methods and techniques. Priority will be given to outcomes from science-practice co-production and co-design. We strive to bring together the broad range of scientific and practice fields working on the causes, patterns, pathways and impacts of urban transformations. The journal aims to unpack and critically examine the complex social, ecological, economic, political and technological processes of transformative urban change. This implies relating different spatial scales, time horizons, action domains and agency forms with a view to develop suitable options for societal steering. Authors can choose between five formats of different length and structure, depending on their background and objectives - see the Submission Guidelines tab for a full list of article types. To enhance uptake and impact, contributions should always synthesize key lessons for science, policy and practice.