Dr. Trijntje Völlink works at the Faculty of Psychology and Educational Sciences at the Open Universiteit. Since 2006 her main research focus has been on cyberbullying. Recently she was co-supervisor of two PhD projects concerning cyberbullying and cybersafety, respectively entitled: ‘An online tailored intervention for victims of cyberbullying in secondary schools’ (2010-2015) and 'Youth and Cybersafety: Youth being at risk and a risk on the internet (2010-2015). She was guest editor of a special issue for the Journal of Community and Applied Social Psychology concerning Antisocial behaviour in online communities that was published in 2013 and in 2016 she was editor of the book titled: 'Cyberbullying: from theory to intervention' (Routledge). From 2008 to 2012 she was member of the management committee of a European network for researchers concerning cyberbullying (COST Cyberbullying: IS0801) and has considerable experience in working with young people.