This article presents the results of a comparative case study which seeks to understand the characteristics of two library experiences from the Global South. The study sought to (1) analyze the opportunities for and challenges of promoting critical/decolonial Global Citizenship Education from two library experiences in Colombia; (2) identify how these experiences, from diverse situations, show we can employ local solutions to resolve the great problems we face as a global community today. The article concludes that the promotion of library experiences from the Global South and the promotion of critical/decolonial Global Citizenship Education from these types of libraries require imagining and making possible a library without books, without the physical spaces usually associated with libraries, without "users", and without conventional librarians.