Global jihadism has been on policy agendas for more than two decades. Recent years have seen an increasing policy focus on countering the ideologies of al-Qaeda and of regional or local militant groups, often lumping them together under the rubric of a single 'global jihadi ideology'. Despite this, studies of jihadi ideas are at a relatively early stage and have yet to fully capture the richness of their wide-ranging social contexts and intellectual universes. This volume aims to address this lacuna at a time when wider currents of jihadi ideology seem poised to eclipse the long-term impacts...