The Playbook is designed to help educators, providers, and advocates communicate about the value of out-of-school-time (or “extracurricular”) programs. It can also inform the design of programs and policies that make high-quality OST opportunities equitably accessible to all children. The Playbook stems from our research on understanding how parents, teachers, and OST providers perceive the role extracurricular programs play in children’s social, emotional and academic development. The research was supported by The Wallace Foundation.