This scientifically grounded introduction outlines the concept of a discrimination-critical school. It brings together the themes of anti-discrimination, right-wing extremism prevention, and discrimination-critical openness or inclusion. In doing so, the book responds to current challenges, such as enabling equitable educational participation for newcomers in German schools (especially individuals with refugee experiences), effectively implementing inclusion, and fulfilling the democratic mandate of schools. The contributions are very practical and accessible, incorporating numerous expert discussions and interviews with specialists from academia and practice. It presents both the scientific foundations and bridges to educational practice and school development.