Comment by prewett
I'm fairly familiar with the Greek gods, but the problem I've had with reading the Illiad is that it is not at all obvious why this is written. With The Odyssey it's clear: he's trying to get home. But everyone in the Illiad seems to do stupid things for unclear reasons and I just loose interest. I think I would be helped out a lot by finding some summary of the themes the poem is talking about. So I think it's good advice.
Similarly, I'm currently reading through the Poetic Edda. I thought I had a decent grasp of Norse mythology, but I am clearly missing references left and right. (I know, because they are footnoted) I think reading the Prose Edda with its background first would probably have been helpful.
Both Iliad and Odyssey are about the same thing: how the Gods determine the fate of humans, even the most powerful of them. They sometimes do stupid things because that's the desire of the Gods.