From joy to wonder, from mishap to delight, Caillou learns about the world around him. This boxed set with plastic handle for easy carrying includes six bestsellers from the series: Caillou Dresses Up! Disguised as an astronaut, Caillou goes trick or treating. Caillou Goes Birdwatching Grandma brings Caillou to the park to discover the local birdlife. Caillou: Hiding Place Caillou discovers a family treasure in a special hiding place. Caillou Rides a Bike Caillou learns the hard way about bicycle safety. Caillou Rides on a Plane Caillou takes the plane for the first time. Caillou Walks a Dog Caillou would love to have his own dog, but he already has a cat.