Tracey lives in Bath and is the author of many non-fiction books for children, including The Comic Strip History of the World (and further Comic Strip titles), 101 Things You Need To Know (And Some You Don't), and the Hard Nuts of History series. Andrew is the author of over sixty books and graphic novels for children and adults. His books have been translated into thirty languages around the world and have sold over eight million copies in the last decade. Working closely with the New York Times bestselling author, Eoin Colfer, Andrew adapted four Artemis Fowl books into full length graphic novels for Hyperion. Andrew's original fiction has been published by HarperCollins, Hachette, and Scholastic. His non-fiction books have appeared on the lists of Bloomsbury, DK, and Scholastic. His work in comics includes Batman: Legends of the Dark Knight for DC Comics, 2000AD, and Doctor Who. He happily believes he is the only writer alive to have written for the characters of Batman, Superman, Doctor Who, and Artemis Fowl. Libby lives and works in Greenpoint, Brooklyn. She grew up in Michigan on the edge of the Great Lakes dunes, and has lived in Chicago, New York, and Stockholm. Her work comes out of her deep affinity for storytelling, music, letterforms, printed ephemera, and wildlife