With contributions from B. Bläsi, M. Dreiner, S. Drewes, C. Druyen, N. Fiedler, D. Günnewig, B. Hagenhoff, J. Helmerichs, J. Hoffmann, R. Kahr, H. Karutz, K. Kommnick, H. Kunigkeit, F. Lasogga, V. Leuschner, J. Loh, D. Mesch, A. Niedermeier, M. Retzlaff, F. J. Robertz, L. Schauen, C. Schedlich, H. Scheithauer, A. Schultze-Krumbholz, N. Seeger, K. Seifried, F. Sommer, D. Thietz, R. Uhle, T. Weber, H. Wichterich, A. Winther, R. Zeddies. Teachers and school administrators are increasingly confronted with crises, such as violent incidents that cause significant unrest in schools and lead to stress. Competencies in prevention, effective crisis management, and aftercare are essential. This book details what preparations are useful and what tasks need to be addressed in the event of a crisis. The services offered by support agencies are comprehensively presented, as well as the defined roles.