The Percy Jackson Boxed Sets are two different box sets that were released for the Percy Jackson and the Olympians series.
The Percy Jackson Box SetThe first box set contained the first three books of the Percy Jackson and the Olympians series: The Lightning Thief, The Sea of Monsters, and The Titan's Curse. The description of the box set read "Re-live the adventure from the beginning with this collection, filled with plenty of non-stop humor and heart-pounding action!".
The Percy Jackson Hardcover Boxed Set
The next box set released all the books in the series in a hardcover format. The set includes all of the books in the first series: The Lightning Thief, The Sea of Monsters, The Titan's Curse, The Battle of the Labyrinth, and The Last Olympian. It includes stickers, cards and a small map of Camp Half-Blood, hidden in a compartment beneath the books.