Dave Keane always loved monsters as a kid. Halloween was his favorite holiday and he dreamed of becoming a werewolf or a vampire when he grew up. Instead, he became a children's book writer and illustrator. Now he and his wife stay busy raising three little monsters of their own in Northern California.

Denise Brunkus has illustrated more than sixty books for children, most notably the bestselling Junie B. Jones series by Barbara Park, Read All About It! by Laura Bush and Jenna Bush, and Charlie Hits It Big by Deborah Blumenthal. Denise is basically a neat person, so adding smudges and smears to the art for Sloppy Joe was an unexpected thrill. She lives in Massachusetts.

Denise Brunkus es una conocida ilustradora de libros para niños con más de sesenta libros publicados, entre los que se destacan la exitosa serie Junie B. Jones, Charlie Hits It Big, Chocolatina y Groundhog Gets a Say. Vive en Massachusetts con su esposo y su gran colección de libros.