Joas Wagemakers is an associate professor of Islamic and Arabic Studies at Utrecht University and the director of the Netherlands Interuniversity School for Islamic Studies (NISIS). He has published extensively on Salafism and Islamism – particularly the ideological aspects of these – in the Jordanian, Palestinian and Saudi contexts. His monographs include A Quietist Jihadi: The Ideology of Abu Muhammad al-Maqdisi(2012), Salafism in Jordan: Political Islam in a Quietist Community (2016), The Muslim Brotherhood in Jordan (2020) and The Muslim Brotherhood: Ideology, History, Descendants (2022).