The Arab Maghreb-the long stretch of North Africa that expands from Libya to Mauritania-is a vitally important region that impacts the security and politics of Europe, sub-Saharan Africa, and the broader Middle East. As Middle East scholars Frederic Wehrey and Anouar Boukhars show in Salafism in the Maghreb, it is also home to the conservative, literalist interpretation of Islam known as Salafism, which has emerged as a major social and political...