"Oliver Scharbrodt provides a striking exception to this history of disinterest and neglect. He does not just take a second look at the two movements; he places them firmly within the history of modern Islamic reform. The result is a compelling achievement that opens up new avenues for research in both areas and for the re-examination of matters chronologically prior to and after the two men whose careers form the basis for the present work. Scharbrodt’s own research is just what a study like this demands: detailed, wide-ranging, and careful."- Denis MacEoin in Religion 40 (2010), pp. 72-73