After studying for BA (Hons) and MA degrees in English and American literature, Oakley Graham has been writing children's books ever since. He has penned over 200 children's books and has produced work for Penguin, Disney, School Specialty, Scholastic, Barnes & Noble, The Hayward Art Gallery London, Washington Corcoran Gallery of Art and Imagine That, to name but a few. Coen Hamelink is a Dutch illustrator living near Amsterdam, The Netherlands. Coen is always creating new ideas, associating and connecting thoughts, playing around and trying new things. Three of Coen's works were selected for '200 Best Illustrators Worldwide' by an international jury and Lurer's Archive, that is published in 35 countries worldwide. He was also featured in the London Showcase 100 illustration exhibition 2014/2015 and in the New York 3-3 Magazine International picture book show - published worldwide late 2014/2015. Big Red Tractor is his first book for Imagine That.