What was the iliad about and how is it connected to the odyssey?

The stories focus on heroic deeds, human weaknesses and the connection between humans and supernatural forces, such as Greek gods.
The Odyssey" is related to "The Iliad" in its overall construction. Homer wrote both poems in the same narrative format from the third person omniscient point of view.

The Iliad tells the story of the Greek struggle to rescue Helen, a Greek queen, from her Trojan captors. The Odyssey takes the fall of the city of Troy as its starting point and crafts a new epic around the struggle of one of those Greek warriors, the hero Odysseus.