The Bristol County Sheriff’s Department will hold a presentation on “antibullying” at Dartmouth’s North Branch Library on Tuesday, Sept. 13 at 6 p.m.

The presentation will include information about why children bully, signs to look for that signal a child may be the victim of bullying, cyber bullying and harassment, and suggestions to create safer online experiences for children.

The event is free and open to the public. Registration is required at antibully-awareness.eventbrite.com.