Chapter1. Introduction.- PartI. Mapping for the Goals on Poverty, Hunger, Health, Education, Gender, Water, and Energy.- Chapter2. Open Data Addressing Challenges Associated with Informal Settlements in the Global South.- Chapter3. Leveraging Spatial Technology for Agricultural Intensification to Address Hunger in Ghana.- Chapter4. Rural Household Food Insecurity and Child Malnutrition in Northern Ghana.- Chapter5. Where is the Closest Health Clinic? YouthMappers map their communities before and during the COVID-19 pandemic.- Chapter6. Cross-continental YouthMappers Action to Fight Schistosomiasis Transmission in Senegal.- Chapter7. Understanding YouthMappers Contributions to Building Resilient Communities in Asia.- Chapter8. Activating Education for Sustainable Development Goals through YouthMappers.- Chapter9. Seeing the World Through Maps: An Inclusive and Youth Oriented Approach.- Chapter10. Youth Engagement and the Water-Energy-Land Nexus in Costa Rica.- Chapter11. Power Grid Mapping in West Africa.- Chapter12. Mapping Access to Electricity in Urban and Rural Nigeria.- PartII. Youth Action on Work, Leadership, Innovation, Inequality, Cities, Production and Land.- Chapter13. Stories from Students Building Sustainability Through Transfer of Leadership.- Chapter14. Drones For Good: Mapping Out the SDGs Using Innovative Technology in Malawi.- Chapter15.  Assessing YouthMappers Contributions to the Generation of Open Geospatial Data in Africa.- Chapter16. Mapping Invisible and Inaccessible Areas of Brazilian Cities to Reduce Inequalities.- Chapter17. Visualizing YouthMappers Contributions to Environmental Resilience in Latin America.- PartIII. Marking a Path to Goals on Sustainable Communities, Consumption, Climate, Oceans, Land, and Justice.- Chapter18. Youth Engagement and Participation in Mitigating Perennial Flooding in Kampala, Uganda using Open Geospatial Data.- Chapter19. Sustainable Mobility through Knowledge Exchange and Collaborative Mapping of Cycling Infrastructure: SIGenBici in Medellín, Colombia.- Chapter20. Wastesites.io: Mapping Solid Waste to Meet Sustainable Development Goals.- Chapter21. Mapping for Resilience: Extreme Heat Deaths and Mobile Homes in Arizona.- Chapter22. Mapping for Women's Evacuation Plans during Climate-induced Disasters.- Chapter23. Sustainable Development in Oceania and the Role of Mapping for Women.- Chapter24. Sustainable Coastal Communities in the Anthropocene: Lessons from Crowd-Mapping Projects in Colombia.- Chapter25. Collaborative Cartography Making Riparian Communities Visible in Tefé, Amazonas, Brazil.- Chapter26. Open Mapping with Official Cartographies in the Americas.- Chapter27. Cities of the Future Need to be Both Smart and Just: How We Think Open Mapping Can Help.- PartIV. Supporting YouthMappers to Advance the SDGs through Institutions and Partnerships.- Chapter28. Mentoring Experiences in YouthMappers Chapters.- Chapter29. The Ecosystem Where YouthMappers Live and Thrive.- Chapter30. A Free and Open Map of the Entire World: Opportunities for YouthMappers within the Unusual Partnership Model of OpenStreetMap.- Chapter31. Youth and Humanitarian Action: Open Mapping Partnerships for Disaster Response and the SDGs.- PartV. The Paths Ahead.- Chapter32. Generation 2030: The Strategic Imperative of Youth Civic and Political Engagement.- Chapter33. Reflecting on the YouthMappers Movement.