—Luke de Noronha, co-author, —Bridget Anderson, Professor, University of Bristol Borders must be abolished. Borders produce and are produced by carceral, racist, classist, sexist, and xenophobic regimes. demands transformative politics to dismantle these systems of oppression. Taking the key tenets of abolitionism and applying them to the debate around borders, the contributors bring a rich understanding of the history and context of carceral and policing systems. Heralding from different countries, disciplines, and activist struggles, they show how their theories are being realized through feminist decolonial praxis, and how personal experiences of borders and organizing against them inform abolition. Expanding the debate to areas including asylum, detention camps, mobility, and climate change, offers new tools for anyone working to defend freedom of movement for all.  ​​​​​​​ is a Marie Skłodowska-Curie Research Fellow at the Spanish National Research Council and the University of Queensland. is an activist-researcher focusing on border infrastructures, state violence and abolitionist struggles against the border regime. is an Associate Professor of Spanish at the University at Buffalo and author of . is a Lecturer in Sociology at The Open University.