Introduction: Towards the morphology of a genre / John J. Collins -- The Jewish apocalypses / John J. Collins -- The early Christian apocalypses / Adela Yarbro Collins -- The Gnostic apocalypses / Francis T. Fallon -- Greek and Latin apocalypses / Harold W. Attridge -- Apocalypses and "apocalyptic" in rabbinic literature and mysticism / Anthony J. Saldarini -- Persian apocalypses / John J. Collins.