This document summarizes a study exploring intimate partner violence among young people in five European countries. The study uses a mixed-methods approach, including expert workshops, a survey of 4,500 14-17 year olds, interviews with 100 young people, and development of an app. The survey finds high rates of online and offline emotional, physical, and sexual abuse. Girls report more negative impacts than boys. Factors like family violence, bullying, and gendered attitudes predict greater risk. The study also examines sending and sharing of sexual images, finding it associated with greater intimate partner violence risk, especially for girls.