Gun violence undermines a quest for a healthy and productive life. This book is urban focused, with race and socioeconomic class assuming prominence, thus bringing a social justice and equity lens. Gun violence is best conceptualized as a jigsaw puzzle, with deaths representing one dimension and injuries the other. The vast majority of gun violence encounters cause an injury rather than death, which only enhances the importance of this public health issue. US gun violence is commonplace, particularly in its cities and in communities of color. This translates into major policy decisions that ignore these communities, and fear of crime is the glue that helps associate gun violence and race. This book addresses five goals: (1) provide a picture of the extent and nature of gun injuries among children/youth and adults, with a special emphasis on those of color and cities; (2) provide a series of concepts for conceptualizing urban-focused interventions; (3) provide case illustrations of innovative interventions; (4) highlight recommendations for practice, education, and research; and (5) identify crosscutting themes to move this field forward.