Part I: Theory.- Chapter 1. Mindfulness-based interventions in youth (Alvaro Langer).- Chapter 2. Generosity and resilience in youth (Christoph Steinebach).- Chapter 3. Basic needs and positive relations in youth (Marcel Schär).- Chapter 4. Schools as positive environments (Sabine Pirchio).- Chapter 5. The Community as a positive environment (Giuseppe Carrus).- Chapter 6. The transgenerational research of mindfulness interventions and positive environments (Perla Kaliman).- Part II: Practice.- Chapter 7. Enhancing resilience in children and youth (Ronit Jinich).- Chapter 8. Mindfulness-based interventions in educational settings (Janet Carola Perez Ewert).- Chapter 9. Schools as healthy workplaces (Volker Schulte).- Chapter 10. Building resilient communities (Sebastian Medeiros Urzua).- Chapter 11. Intercultural mindfulness and resilience interventions (Le Hoang The Hui).- Chapter 12. Recommendations for psychological interventions in the educational context (Matiás Irarrázaval).- Part III: Evaluation.- Chapter 13. Current issues in research on mindfulness-based interventions (Niko Kohls).- Chapter 14. Individual level (Philipp Steinebach).- Chapter 15. Group, class, and school (Alvaro Langer).- Chapter 16. Community level (Mariane Krause).