Drew Daywalt grew up in a haunted house, but now lives in a Southern California home haunted only by his wife, two kids, and a German shepherd. A Hollywood screenwriter when he is not writing for young readers, Drew's favorite crayon is Black. He is the #1 bestselling author of The Day the Crayons Quit and The Day the Crayons Came Home, in addition to may other titles.

Oliver Jeffers is a creator of art for adults and children. An illustrator of fine art, his picture books have received numerous awards and much critical aclaim. The Day the Crayons Quit and The Day the Crayons Came Home were both #1 New York Times bestsellers. Oliver has has become one of the world's most in-demand artists, creating pieces and graphics for TED Talks, The New York Times, Publishers Weekly, and for U2's lyric video to the song "Ordinary Love." You can find Oliver at oliverjeffers.com.