This report is published in response to a request for advice from the Welsh Government in the Minister’s annual remit letter to Estyn for 2013-2014. The report examines the effectiveness of action taken by schools to address bullying, with particular reference to bullying on the grounds of pupils’ protected characteristics (age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex and sexual orientation). The report includes case studies of best practice illustrating how the best practice schools deal with bullying. Pupils shared their experiences of bullying readily with the team, but case studies of pupils’ experiences have been written in such a way as to avoid identifying individual pupils. The report is based on evidence from visits to 21 schools, scrutiny of documentation and evidence from the current inspection cycle. A further seven schools provided policies and strategic equality action plans for scrutiny. See Appendix 1 for further details of the evidence base. The report is intended for the Welsh Government, headteachers and staff in schools, local authorities and regional consortia. It may also be of interest to teacher trainers and church diocesan education authorities.