Nelly Buchet is the author of Cat Dog Dog, which was chosen by children around the world as the 2021 Irma Black Award winner, named a 2021 Notable Children's Book by the American Library Association, and selected for a host of best-of-the-year lists. She is also the author of How to Train Your Pet Brain and the Can't Do! board book series. Nelly lives in France.

Andrea Zuill is the author-illustrator of Wolf Camp, Dance Is for Everyone, Marigold & Daisy, Business Pig, and Sweety. She is also the illustrator of Cat Dog Dog and Donut. Her work has been exhibited in galleries in New York, Texas, and California; at the San Diego Museum of Art; and at the Brand Library gallery, where she won a Disney Imagineering Award. Andrea lives in Escondido, CA.