Christine L'Heureux is the founder of Chouette Publishing and the cocreator of Caillou. She is the author of several books, including Caillou: Good Night, Caillou: Play with Me, and Caillou: Rosie's Pacifier. Pierre Brignaud is the illustrator of all the Caillou titles in the Hand in Hand series, Step by Step series and Baby Caillou. They both live in Montreal, Quebec.