Social justice in library and information science (LIS) seeks to achieve action-oriented, socially relevant impacts through information work. This edited volume includes papers that explore intersections between critical theory and social justice in LIS while focusing on social relevance and community involvement to promote progressive community-wide changes. Contributors include LIS researchers, practitioners, educators, social justice advocates, and community leaders who identify theories, methods, approaches, strategies, and case studies that apply these intersections in mobilizing community action to deliver tangible community building and development outcomes. The frame of study is inclusive of (though not limited to) academic, public, school, and special libraries, museums, archives, and other information-related settings. An international context of analysis is included along with a focus on social impact and community involvement in LIS practice and research, education, policy development, service design, and program implementation.