This volume provides a concise but authoritative overview of the Never Again Movement, which arose in the aftermath of a mass shooting that killed 17 people at a high school in Parkland, Florida, in February 2018. • Provides entries devoted to individual events as well as milestones • Offers biographical profiles to help readers understand the motivations and accomplishments of important activists and figures • Presents essays that explore the lasting impact of school shootings and the Never Again Movement on American life • Features an annotated bibliography that gives readers resources for further study