A survey of the organizational and idealional changes that have marked the Islamic world in the last three centuries and that have been characterized as " Neo-sufism " . The course will start with a study of the mujaddidi movement of Ahmad Faruqi Sirhindi (1563 - 1624) and cover developments in the 18th and 19th centuries as well as ramifications of revivalism in Anatolia- Contributions to these movements by leaders such as Ahmad Ibn Idrıs (1760 - 1832),Muhammad Ali as-Sanusi 1787-1859),Shakh Khalid Shahrizuri al Bagdadi (1776 - 1827),Muhammad al Mahdi (1844-1881),and Ziyaeddin Gümüşhanevi (1812-1893) will be highlighted within two main frames:that of Islamic culture and that of recent theoretical contribution to the study of " Fundamentalism ". One aspect of these developments feeds directly into contemporary Turkish Politics through the influence of Mehmed Z. Kotku and N. Erbakan.