Professor Tahir Abbas, FRSA, FAcSS, holds the Chair in Radicalisation Studies at the Institute of Security and Global Affairs at Leiden University in The Hague. Previously, he was a Senior Research Fellow at the Royal United Services Institute in London, a Professor of Sociology at Istanbul University, and a Reader (Associate Professor) in Sociology and Director of the Centre for the Study of Ethnicity and Culture at the University of Birmingham. His recent books are Islamophobia and Securitisation (Springer-Nature, 2022, with L Welten), Countering Violent Extremism (Bloomsbury-IB Tauris, 2021), and Islamophobia and Radicalisation (Oxford University Press, 2019). He has recently been a visiting scholar at the London School of Economics (2017–2019) and New York University (2015–2016). He is a Fellow of the Royal Society of Arts and a Fellow of the Academy of Social Sciences.