This chapter contains presentations of concrete psychosocial programmes which are school based or tightly connected with the school system: psychosocial seminars for teachers; outreach activities of professionals in schools; counselling centres for children, parents and teachers; and training of schools psychologists. The leading idea of those programmes is that substantial human energies can be activated in the frame of the most universal social system – primary schools including all children aged 6-15. The Kosovo experience shows that investments in the school system are productive and economic.