Liber amicorum do Professor José Luis Molina

This article pays tribute to José Luis Molina, Professor of Social Anthropology at the Universitat Autònoma de Barcelona, ​​whose work has been decisive in the development and expansion of social network analysis in Latin America. Over more than three decades, his interdisciplinary approach has influenced fields such as migration, the informal economy, mutual aid, and new forms of digital work. But his legacy transcends the scientific: he has been a mentor, a driving force behind academic communities, and a key figure in the creation of international collaborative networks. This text gathers the voices of colleagues, disciples, and friends from Europe and Latin America who bear witness to his generosity, critical vision, and ethical commitment. It also includes a visual analysis of his co-authorship network. Gathered on the occasion of an academic meeting in León (July 2025), these texts pay tribute to a natural leader who has masterfully woven a dense network of relationships.