Rick Riordan, dubbed "storyteller of the gods" by Publishers Weekly, is the author of five #1 New York Times best-selling middle grade series with millions of copies sold throughout the world: Percy Jackson and the Olympians, The Heroes of Olympus, and the Trials of Apollo, based on Greek and Roman mythology; the Kane Chronicles, based on Ancient Egyptian mythology; and Magnus Chase and the Gods of Asgard, based on Norse mythology. Rick collaborated with illustrator John Rocco on two #1 New York Times best-selling collections of Greek myths for the whole family: Percy Jackson's Greek Gods and Percy Jackson's Greek Heroes. Rick is also the publisher of an imprint at Disney-Hyperion, Rick Riordan Presents, dedicated to finding other authors of highly entertaining fiction based on world cultures and mythologies. He lives in Boston, Massachusetts with his wife and two sons. Follow him on Twitter at @camphalfblood.

John Rocco (www.roccoart.com) studied illustration at the Rhode Island School of Design and the School of Visual Arts. In addition to writing and illustrating several of his own picture books, including Blizzard and the Caldecott Honor-winning and New York Times best-selling Blackout, he has created all of the cover art for Rick Riordan's best-selling Percy Jackson, Kane Chronicles, Heroes of Olympus, Magnus Chase and the Gods of Asgard, and Trials of Apollo series. He collaborated with Rick on two #1 New York Times best-selling collections of Greek myths for the whole family: Percy Jackson's Greek Gods and Percy Jackson's Greek Heroes, as well as The Lightning Thief Illustrated Edition.