Bishara offers a sophisticated account of various movements-such as Wahabbism and Hanbalism-frequently collapsed into simplistic understandings of Salafism. He distinguishes reformist from regressive Salafism, and examines patterns of modernization in the development of contemporary Islamic political movements and associations. In deconstructing the assumptions of linear continuity between traditional and contemporary movements, Bishara details various divergences in both doctrine and context of modern Salafisms, plural. On Salafism is a crucial read for those interested in Islamism, jihadism, and Middle East politics and history.