Percy Jackson and the Olympians by Rick Riordan hardcover first edition set with out of print cover art in like new/good condition. The Lightning Thief is first edition 9th print, The Sea of Monsters is first edition 1st print, The Titan’s Curse is first edition 1st print, Battle of the Labyrinth is first edition SIGNED 1st print and The Last Olympian is first edition 9th print. Flaws are as shown in pictures—all other books are like new condition but TLT is fair/good condition. It also has an empty name plate on an inside page.