Racism, i.e. discrimination against people on the basis of their supposed ethnic origin, is omnipresent in schools. Apart from students, trainees and teachers, all actors in the school context are affected by this topic. Why is this so? How can racist discrimination be explained? What effects does this behavior have on those affected? And how can schools counteract it? These are all questions that arise and which this book aims to answer with the intention of enabling all those acting in the school context to critically examine their own knowledge bases relevant to racism. This book contributes to the development of school as a racism-sensitive space in which all actors behave in a racism-sensitive manner. Therefore, in addition to an overview of the history of racism, approaches to explaining racist behavior and the effects of racist discrimination, prevention and intervention approaches for a practice critical of racism in schools are presented.