How does solidarity emerge? When are political alliances formed beyond differences, and why do certain struggles seem to garner more solidarity than others? What constitutes solidarity work, and what contradictions, interests and strategies shape it? In their new volume, Hierarchies of Solidarity, Sinthujan Varatharajah and Moshtari Hilal jointly reflect on a practice that, as an act against oppression, manifests itself in both seemingly small, everyday gestures and global political contexts. The result is a revelatory conversation that, grounded in lived experience, traces the racist structures of the discourse landscape and offers alternative ways of understanding solidarity.