Here we have a complete set of the 5 Percy Jackson and the Olympians books, by Rick Riordan, in trade paperback. This was originally a box set, and while the box is gone, all five volumes are present and in excellent condition. The set includes: I - The Lightning Thief II - The Sea of Monsters III - The Titan's Curse IV - The Battle of the Labyrinth V - The Last Olympian All books are in great shape, with square spines and crisp corners. The Last Olympian has some gentle creasing on the front cover. The other books have some occasional light edge wear. There are no rips, creases, or markings inside.