The talk will initially provide an overview on school bullying, looking at traditional bullying and cyberbullying. I will then present a summary on some recent research we have conducted looking at traditional bullying victimisation, social anxiety, and disrupted classroom concentration. I will then present some research looking at cyberbullying in the school environment, especially how teachers manage it, and how young people perceive and respond to it. School bullying is a considerable problem among school students, and school-wide positive behaviour support interventions are regarded as helpful in addressing it. The talk will finally address a novel anti-bullying intervention – the CATZ Cross-age Teaching Zone. Our research indicates significant positive effects of CATZ and social validity ratings predicted a greater willingness to engage in it in the future. Alongside the extant data for its effectiveness, our findings support the wider use of the CATZ anti-bullying intervention in schools, and suggestions for how this might be brought about will be discussed.