Students who bully, attack, and mock others on social networks are a common occurrence in today's school life. When students are subjected to this harassment over an extended period, it is referred to as bullying. The topic of bullying is currently being widely discussed in society. In practice, teachers, school staff, and parents often lack solid background knowledge and concrete ideas on how to take targeted action and help affected students. The experienced speaker from the Teacher Training Institute Querenburg works as a trainer for violence prevention and has a close connection to the realities of school life. She trains teachers from primary and secondary schools and advises parents. In this volume, she provides everything you need: the course of bullying, the victims and perpetrators, the effects, and the role of the school—covering all important aspects.