You can call him Ulysses, as the book does, but I prefer Odysseus. Anyway, this book is a picture-book version of Homer's Odyssey.
I wanted to read it because of how many books about ancient Greek mythology I've read (such as the Mytholpedia books and Percy Jackson).
It told the story of Odysseus--the story is about him going home from the Trojan War and how lost he became and how he finally got home. It tells the story through cartoon-like panels, filled with really great art.
It explains how was the King of Ithaca and was very brave. At the start of the journey, he is pretty sure where he is going until Zeus causes a thunderstorm and they lose their sense of direction. The journey is incredibly long and terrifying for anybody normal, however Odysseys is not exactly normal. He encounters many islands with dangerous beasts and monsters on them, including the sirens, Polyphemeus, Circe, and even some Gods make trouble such as Zeus who stuck Odysseus and his crew in a thunderstorm twice and Poseidon who made trouble by answering a prayer from Polyphemeus (who happens to be one of Poseidon's children). But Athena helped him, near the end of his journey by helping him get to Ithaca safely and giving him a disguise because otherwise people would kill him because they probably were angry that their king had been gone for something like 20 years.
This book explains a lot of what happened in the 2nd Percy Jackson book, like both Percy and Odysseus encountered Scylla, Polyphemeus, the Sirens and Circe. Odysseus was forced to see his men get turned into pigs by Circe, but Percy got turned into a Guinea Pig!
I'd recommend it to anyone who has liked the Percy Jackson books, like I have, at least if you aren't already old enough to real the Odyssey in its original long poem form.