Nico J.G. Kaptein Ph.D. (1989) teaches Islamic Studies at Leiden University. His book Islam, Colonialism and the Modern Age in the Netherlands East Indies: A Biography of Sayyid `Uthman (1822-1914), Leiden: Brill, 2014 will appear later this year in an Indonesian translation. Currently, he is working on a book on Ahmad Khatib al-Minangkabawi. He is section editor Southeast Asia for the authoritative Encyclopaedia of Islam, Third Edition (Brill, Leiden).