As part of the National Foundation for Educational Research (NFER) attitude survey, children in school years 7 to 13 (aged 11 to 18) were asked questions about the types of bullying they had experienced over the last 12 months and why they think they may have been bullied. Through analysis of their responses to these questions and how these relate to the emotional wellbeing of children (also measured within the questionnaire) some conclusions can be made as to the prevalence of different types of bullying and the relative seriousness of each type of bullying as measured by its impact on emotional well-being. The analysis indicates that: – Schools and parents should be aware of the potential harm done to young people when they experience bullying through “being left out”. – “Being left out” is more common amongst girls than boys. – For girls “unwanted sexual contact” was found to be the type of bullying most strongly associated with poor emotional well-being. – The most common type of bullying is verbal abuse. – Pupils become less likely to be the victim of the majority of types of bullying once they enter the sixth form. Of all of the analysis undertaken within this paper perhaps the most striking finding is that the type of bullying that appears to be the most damaging to the emotional well-being of children is “being left out”. In other words, although both physical and verbal abuse can be very harmful to children, it is exclusion and being prevented in participating in the ordinary social activities of young people that is the most damaging of all. In light of this, it is interesting to note that many school anti-bullying policies give most attention to the former type of bullying (explicit abuse) and less attention to this more subtle type of bullying. Similarly, parents may also be less likely to report such „low-level? bullying to schools or to take action about it. Adults may perceive it as less serious and something children will sort out themselves.