A theory and handbook for fostering personal development and psychosocial skills in compulsory education at all levels. 

In response to the growing challenges of well-being and mental health in schools, teachers are now expected to foster not only academic learning, but also essential psychosocial skills in their students. But how can these skills be taught in a concrete way, without overloading curricula or relying on complex programs? Developed as part of a large international research and training project, this book offers a practical, evidence-based approach to positive education in schools. Drawing on extensive meta-analyses in positive psychology, it provides teachers with a clear, flexible, and immediately usable toolbox. Each chapter presents short interventions, full lesson plans, and actionable points for the whole school, suitable for all levels of compulsory education and directly aligned with "transversal competences" in Swiss curricula. An accessible theoretical introduction explains the scientific foundations of positive education and well-being development in schools. Written by and for education professionals, this book supports teachers in integrating well-being and psychosocial skills into their everyday practice, fostering learning environments that are calmer, more effective, and more humane.