This article introduces the AESOP Thematic Group on Public Spaces and Urban Cultures (PSUC), founded in April 2010 to foster interdisciplinary and international dialogue on public space and urban culture. The group engages academics, practitioners, and public stakeholders through meetings, workshops, and online platforms. It supports research, planning, and educational initiatives focused on spatial justice, everyday urbanism, and participatory processes. The article presents the group’s structure, key themes, events, and publications, emphasizing its open and inclusive approach and its ambition to bridge theory and practice across diverse sociopolitical contexts.