Oliver Jeffers is the author-illustrator of many books for children, including Once Upon an Alphabet, which won a Boston Globe-Horn Book Award, and Lost and Found, which was a Nestlé Children’s Book Prize Gold Medal winner. He is also the illustrator of the #1 New York Times bestseller The Day the Crayons Quit and its follow-up, The Day the Crayons Came Home, both written by Drew Daywalt. Oliver Jeffers lives in Brooklyn.

Sam Winston is a fine artist whose work has been featured in many special collections worldwide, including the Museum of Modern Art in New York, the Getty Research Institute in Los Angeles, the Tate Galleries in London, and the Victoria and Albert Museum in London. He works and lives in London.