In many European countries, a new ieology casts a spell over an increasing number of young people: Islamism. They profess radically against our society and the Constitution and some of them even openly express sympathy with the terror war of the Islamic State (IS). What can school, parents, educators and trainers do to counter such developments? The book offers a couple of case studies, practical advices and experience-based knowledge from the collaboration of the author with school administrations, constitution protection, police state security, jouth work, muslim associations and professionals of intercultural education and violence prevention.