I read O'Connor's Hera: The Goddess and her Glory earlier this school year and was impressed with both the storytelling and the illustrations. I knew I had to go back and read the others in this Olympians series.
Greek mythology can be confusing and strange to those that aren't familiar with it or only know what they've gleaned from Rick Riordan and his Percy Jackson books. O'Connor gives a great introduction to the creation of Earth and the birth of the Olympian gods. It was simplistic, but not overly simple. With the illustrations, the reader visualizes the immense size of the titans and the epic battle between Kronos and Zeus.
The illustrations are the star of this retelling--just perfect! Lots of color, even in the "dark" settings. I give it a B+.