Schools should have multiple avenues for reporting bullying that don’t stigmatise children, and a central recording system for incidents (particularly important as evidence). Staff also need ongoing training in intervention and regular auditing to measure the impact of anti-bullying work. Research is starting to show the range of strategies available to schools. Two or three decades ago, we knew very little, and were unable to provide effective support for teachers, schools, parents and young people. We now know that well-planned interventions can substantially reduce bullying, although there can be pitfalls along the way. But there is still much to learn about which interventions are most effective and in which circumstances.