Thousands of school children are taking part in a council survey as part of a crackdown on bullying.
Thousands of pupils will complete a survey about bullying
The views of 4,500 pupils in 10 East Sussex schools will be collated in a survey that will then be rolled out to a further 20 schools across the county.
Councillor Rupert Simmons said it was a major issue for children in the county.
The survey is being launched during Anti-Bullying Week in November, when events will also include a poster contest focusing on cyber-bullying.
Mr Simmons said the council had a commitment to combating bullying "both in and out of school".
"Clearly bullying in any shape or form is completely unacceptable," he said.
A resource pack including lesson plans has been prepared for primary and secondary schools.
Assemblies, workshops, and parents' evenings are also being held to raise awareness of the problem.
Events planned for the week starting on 19 November will cover schools, colleges and youth centres.