If you don't have the patience to read the Illiad, then read this book instead. Not only does it relate the stories in it, it debates them and places them in historical context. It attempts no less than an explanation of the epic poem, how it came to be, what it means, and what we should think about it today.
Personally, I think it should be required reading for anyone who has read the Old Testament and been disturbed by it, particularly the conquest of Canaan. Because if the Greeks are one of the two founders of Western Civilization, then that makes the Illiad the OTHER founding text - a sort of mirror image of the Bible.
So as for the conquest, the reality is that the bronze age (or early iron age) were very different worlds than we know today. People back then thought and acted entirely differently. In fact, the closest approximation that Mr. Nicolson can make is that the Greeks were basically a street gang while the Trojans were the wealthy 1%ers. Yes, that's right, the Greeks, our idealogical "forefathers," were just a bunch of street hoodlums, stuck on themselves, desparate to prove their heroism and manhood by slaughtering the men, raping the women, and enslaving the survivors. It's not a flattering picture.
But still, it does open a window onto the ancient world. No, it was not a place of liberty, fraternity, and equality. A women was worth less than a bronze tripod. Achilles claims Briseis the old fashioned way: by slaughtering her mother, father, brothers, and husband. She, in turn, comes to love(!!!!) Achilles, in a way, because if anything happens to him, one of the other Greek thugs will claim her. Better the devil that you know. No wonder people back then believed in Fate. Horrible things happened to you that were simply beyond your control. People back then accepted their reality - if we faced similar circumstances, our minds would probably break.
Finally, the most telling portion of the book was the actual intersection that Homer's world has with the Bible: Mr. Nicolson contends that the Philistines were early Greeks, which makes Goliath a sort of Achilles of the Old Testament. And we see what happens when the pious mindset meets the heroic mindset: the one crushes the other with only 5 smooth stones. God is no respecter of persons, or of bronze armor, or of shouted boasts and threats. Frankly, I'm glad to live in a world where the pious wordview won.
But that is not what the book is ALL about, that's just the part that resonated most with me. Mr. Nicolson addresses things like how the poem could physically have come to be. We post-moderns are highly suspicious of oral tradition, certain that only the written word, recorded as soon as possible after the event in question, can possibly relate the truth. But this is a new worldview: human language is essentially oral, and human history for millenia was oral. That is the reality, plain and simple, and the ability to remember/create/perform a poem of the epic tradition is truly astounding. Video footage is not required to arrive at the truth, and may in fact hinder the truth coming out, because INTERPRETING an event is just as critical as the actual event.
So, read the book. This one is going in the library, not back to the used book store.