Essay on Islamization is a study of the Islamization of all Muslim societies and their conversion to orthodox Islam which, with its chapels, soldier monks and holy war, leads to fundamentalism as well as to a moral puritanism. Cherkaoui gauges the importance of this global phenomenon by analyzing the empirical data of some sixty Muslim and non-Muslim societies. He also conducts two ethnographic surveys to identify the metamorphoses of Muslim religious practices and their causes.