This book explores the crucial role libraries play in advancing the United Nations' Sustainable Development Goals (SDGs). Libraries are more than just repositories of books; they are dynamic institutions that facilitate access to knowledge, foster digital inclusion, support lifelong learning, and promote sustainable development. This volume brings together scholars, practitioners, policymakers, and information professionals to discuss how libraries contribute to various SDG targets, including quality education (SDG 4), reduced inequalities (SDG 10), peace and justice (SDG 16), and partnerships for the goals (SDG 17). It examines the innovative strategies libraries use to drive social change, address global challenges, and empower communities through information access and digital technologies. The book also presents theoretical insights, empirical research, and case studies from different regions, particularly from the Global South, highlighting the diverse ways in which libraries serve as agents of development.