Stakeholders of development are engaging in the United Nations' call for global sustainable development. Consequently, this chapter examines how public libraries as development agents are enabling or powering sustainable development through the three dimensions of economic, social, and environmental sustainability. Based on these three factors of sustainable development, objectives were raised to guide the study. The study, which is a conceptual review of literature, employed three major databases in library and information science (Emerald Insights, Taylor & Francis Online, and Library & Information Science Source) to search for literature complimented by Google Scholar. Results of the search were filtered by year (2011 to 2021), language (English), and source types (peer-reviewed journal articles, conference papers, short communications, and reports). The study therefore showed strong nexus between public libraries and the dimensions of sustainable development, which are economic, social, and environmental sustainability.