Instructional manual describes the concept of normality, formation and prevention of socio-pathological phenomena as well as the concept of resilience. More specifically, it focuses on the theoretical definition of phenomena such as aggression and violence, extremism and hooligan behavior of youth. The core of the manual consists of recommendations for social workers with youth with aggressive behavior, delinquent youth, football fans and the radicalized youth. Methodological manual provides a description of work with young people through low-threshold programs with reference to the various methods and techniques. It offers practical (certified) procedures for working with youth in the area. It was developed as a result of one year continual experience with young people who were reported the increasing trend of open hostilities against any diversity and extremism.