While U.S. public education is experiencing an increase in student body size and diversity, there is also an increase in racial and socioeconomic isolation. Participation rates among White students are decreasing as rates among Latine and Asian American and Pacific Islander students increase, and Black student participation rates hold steady. Schools, districts, and communities must be prepared to address these two forms of segregation to ensure equity and success for all students. "Advancing Racial & Socioeconomic Diversity Playbook" provides a comprehensive integration planning guide with tools to help build inclusive teams, analyze segregation in your district, and refine plans. The planning guide and worksheets offer teams opportunities to review racial and socioeconomic issues side-by-side and together. The Playbook is supplemented by MAEC's "Equitable Access: Case studies on reducing racial isolation through socioeconomic integration" [ED627811] which presents different approaches, considerations, plans, and results.