This cluster of papers covers a wide range of topics related to religious education, interreligious relations, Islamic religious education, migrant organizations, ethical competence, sustainable behavior, youth extremism, and social embeddedness. The papers explore the development of mediengestützter Lernangebote, the effectiveness of different explainer video formats, and the impact of the flipped classroom on student achievement. Additionally, they delve into the role of religious organizations in social welfare, the integration of Islamic religious education in Western Europe, and the challenges of teaching and understanding religious diversity.