My research focuses on junctions for the transfer of religions and traditions in the late pre-modern and modern periods. 

• On the Islamic side, I have recently published a biography of Muhammad Abduh (2009), as well as two books on Sufism: Saints and Sons (2005), dealing with the history of a group of Sufi orders, and Sufism: The Essentials (first published in 2000, and now reprinted and translated into several languages). An introduction to Islam with a difference--Islam and Muslims--came out in 2006. I have also published various articles on sectarianism, religious change, and terrorism, such as "Al-Qaeda and the Nature of Religious Terrorism" (in Terrorism and Political Violence, 2004).
• On the Western side, I have published on Guénonian Traditionalism, an anti-modernist movement which takes political as well as religious and philosophical forms, and has recently spread to the Islamic world and Russia. This project resulted in a book, Against the Modern World (2004), an active blog, a website that is no longer updated (traditionalists.org), and a number of articles.
• My current major projects are a four-year collaborative investigation of Islam, Muslims and Danish Schools and further research on Sufism and Transnational Spirituality.