Erik Hannerz is a researcher and senior lecturer at the Department of Sociology, Lund University, Sweden. He received his Ph.D. at Uppsala University in 2014 and his main research interest is subcultural groups and more specifically graffiti. Among his recent publications: Hannerz, E. (2022) Playing in the Yard: The Representation of Control in Train-graffiti Films (Crime, Media, Culture), Hannerz, E. and S. Tutenges (2022). Negative chain referral sampling: Doing justice to subcultural diversity (Journal of Youth Studies) and Hannerz, E. and J. Kimvall (2020). Keeping it clean: Graffiti and the commodification of a moral panic. (Visual Inquiry). Hannerz is a faculty fellow at the Center for Cultural Sociology, Yale University.