Caillou is a well-loved and respected children's character. Caillou is books. Caillou is a television series. And yet he is so much more than this.

The Caillou books are designed to contribute to the overall well-being of very young children at each stage of their development. Caillou is a young child's best friend through the journey of early childhood: together, children and Caillou discover life's joys and mysteries and the wonder it all brings.