The Odyssey is an epic poem attributed to Homer about Odysseus' 10-year journey home after the Trojan War. It focuses on Odysseus' adventures as he encounters mythical creatures like the Cyclops, Circe, Sirens, and monsters while trying to return to his wife Penelope and kingdom in Ithaca. During his long absence, Penelope fends off the unwanted advances of suitors vying for her hand and the throne of Ithaca with Odysseus gone. The poem explores themes of heroism, relationships, loyalty, and the struggles of mortal men against powerful supernatural forces.