Robert Thornberg is Professor of Education at the Department of Behavioral Sciences and Learning, Linköping University, Sweden. He earned his Ph.D. in Educational Research from Linköping University in 2006, following earlier degrees in Preschool Education from Karlstad University and in Behavioral Sciences (Education, Psychology, and Sociology) with a Master in Education from Linköping University. Thornberg’s research focuses on school bullying, peer victimization, and bystander behavior, emphasizing moral and social processes such as moral disengagement, empathy, peer norms, and class climate. His additional research interests include hate speech and sexual harassment in schools as well as student teachers' and beginning teachers’ experiences of distressed situations during teacher training. He employs both quantitative and qualitative methodologies.