This guide, in two sections, emphasizes a community-based, school-focused collaborative approach to preventing youth suicide in Wisconsin. Cooperative school district and community agency endeavors frame the approach. The following three-part philosophy undergirds it: First, youth suicide is a community problem requiring a community solution best handled by joint school-community efforts. Second, youth suicide derives from teenager hopelessness. Third, youth suicide prevention efforts can be effectively established using existing service delivery systems. The first section defines the problem, explains program principles, describes how to plan and implement prevention programs, and clarifies the postprevention process in the aftermath of a suicide. The second section describes model suicide prevention programs around the state. (JAM)