Rick Riordan (www.rickriordan.com) is the author of the New York Times #1 best-selling The Heroes of Olympus, Book One: The Lost Hero and Book Two: The Son of Nepture; the New York Times #1 best-selling The Kane Chronicles: The Red Pyramid, The Throne of Fire, and The Serpent's Shadow; as well as the five books in the New York Times #1 best-selling Percy Jackson and the Olympians series. He lives in San Antonio, Texas, with his wife and two sons.

Robert Venditti (www.robertvenditti.com) is the author of the New York Times best-selling graphic novels The Homeland Directive, The Surrogates and its prequel, The Surrogates: Flesh and Bone. He adapted The Lightning Thief, The Graphic Novel, also a New York Times best-seller. He lives in Atlanta, Georgia.

Attila Futaki (www.attilafutaki.blogspot.com) provided the pencils and inks for the New York Times best-selling The Lightning Thief, The Graphic Novel. He also illustrated and colored the graphic novels Spiral and Severed (by Scott Snyder and Scott Taft). He lives in Budapest, Hungary.

Tamas Gaspar (www.gaspartamas.blogspot.com) makes his children's publishing debut with The Sea of Monsters, The Graphic Novel. His work has appeared in Men's Health and in advertisements throughout Europe. He also lives in Budapest, Hungary.