School bullying has become an issue of serious concern in the past two decade.Bullying is characterized by repeated physical or psychological intimidation that can have longstanding effects for victims and bullies alike. These articles present information on the impacts and directions of different subgroups of bullies and victims, highlight the important buffering role that positive adults and school officials can play in preventing the negative effects of bullying and victimization, and emphasize the importance of considering school contexts. The sequence of articles on bullying is also helpful in suggesting several important opportunities of future research on bullying and peer victimization.