Book excerpt: A detailed study on the nature of Muslim apocalyptic material in Islam, both Sunnī and Shīʿī. Taking a transcultural perspective by also discussing Christian and Jewish apocalyptic traditions, it offers in eight studies and three appendices a typology of apocalypses and many new insights into the matter. For instance, historical apocalypses as well as apocalyptic figures, like the Dajjāl, the Sufyānī and the Mahdī are discussed. Moreover, apocalyptic ḥadīth literature, in particular Nuʿaym b. Ḥammād's (d. 844) Kitāb al-Fitan, and apocalyptic material in tafsīr works are presented. The author argues for a comprehensive understanding of this important feature of the Islamic religious tradition. "... a reference tool and a starting point for students in their study of early Islam" (Sajjad Rizvi)