This study examines the role of social media networks, such as Facebook, Twitter, and Instagram, in enhancing school libraries by improving communication, resource accessibility, and community building. The research aims to explore how these platforms can transform school libraries into dynamic, interactive learning environments that promote literacy and academic excellence. A quantitative approach was employed, utilizing structured questionnaires to gather data from 287 respondents, including school librarians, parents, students, and educators from four selected government secondary schools in Nigeria and Libya. Descriptive statistics were used to analyze the collected data, providing insights into the current use and impact of social media networks within school libraries. The findings reveal that while the integration of social media networks significantly enhances communication, promotes literacy, and fosters community engagement in school libraries, several challenges hinder its effectiveness. Key issues include privacy and safety concerns, unequal access to technology and internet connectivity, inadequate staff training, lack of resources, and the absence of social media policies and guidelines. The study identifies effective implementation strategies, such as developing clear social media policies, conducting regular staff training, strategic content creation and management, and ongoing monitoring and evaluation as critical to overcoming these challenges. This research highlights the transformative potential of social media in school libraries, demonstrating how these platforms can make libraries more accessible, interactive, and aligned with the digital habits of students. It provides evidence-based recommendations that can guide school libraries in adopting social media as a tool to better engage with the school community and support educational outcomes. The study is limited to selected schools in Nigeria and Libya, which may affect the generalizability of the findings. Future research could expand to other regions and explore the long-term impact of social media on student literacy and academic performance. The implications of this research suggest the need to foster digital literacy among students and staff, enhance access to technology, and continuously innovate social media integration strategies in educational settings.