I am Professor of Sociology at Lund University, and I have held positions at Jacobs University Bremen, Stockholm University, and Uppsala University where I was SCAS Pro Futura Fellow for four years. My current research is oriented towards the intersection between sociological theory and method with a focus on social network analysis. I have published in leading scientific journals and is the co-editor of “Sociological Insights of Great Thinkers” (Praeger 2011). Principal Investigator for the projects: Criminal networks and social organizing and The organization of violent extremism and anti-social careers.