A research specialized in Islamist groups affairs. His areas of interest also include: international relations, security studies, and sociology of religion. Author of: Contemporary Salafist Status in Egypt, (Cairo, Madbouli, 1st edition 2011, 2nd edition 2016); Islamists and the Revolution, (Cairo, Awraq, 2012), Alexandrian Salafism: Paths of Organization and Outcomes of Politics, (Beirut, Center for Arab Unity Studies, 1st edition 2016); Islamists in Power: Muslim Brotherhood in Egypt (Beirut: Center for Arab Unity Studies, 2017); in addition to many analytical articles and peer reviewed studies.