This 79-page guide provides information on PFS-S, an adaptation of the PFA evidence-based intervention for school personnel. It provides information on how to use PFA-S to support child and adolescent students, adults, and families in the aftermath of a school crisis, disaster, or terrorism event. [Authors: Brymer, M., Taylor, M., Escudero, P., Jacobs, A., Kronenberg, M., Macy, R., Mock, L., Payne, L., Pynoos, R., and Vogel, J.]