Ancient Greek literature begins with the epic verses of Homer. Epic then continued as a fundamental literary form throughout antiquity and the influence of the poems produced extends beyond antiquity and down to the present. This Companion presents a fresh and boundary-breaking account of the ancient Greek epic tradition. It includes wide-ranging close readings of epics from Homer to Nonnus, traces their dialogues with other modes such as ancient Mesopotamian poetry, Greek lyric and didactic writing, and explores their afterlives in Byzantium, early Christianity, modern fiction and cinema, and the identity politics of Greece and Turkey. Plot summaries are provided for those unfamiliar with individual poems. Drawing on cutting-edge new research in a number of fields, such as racecraft, geopolitics and the theory of emotions, the volume demonstrates the sustained and often surprising power of this renowned ancient genre, and sheds new light on its continued impact and relevance today.