This document provides information about bullying, including definitions, types, where and when it occurs, who is at risk, and the effects on those involved. It defines bullying as unwanted, aggressive behavior among school-aged children involving a real or perceived power imbalance that is repeated over time or has the potential to be repeated. There are three main types of bullying: verbal, social, and physical. Bullying can occur in school, on the way to/from school, and online. Children who are bullied, bully others, or witness bullying are more likely to experience negative physical, school, and mental health issues. It is important for adults to respond quickly and consistently to bullying to prevent its negative effects.