This book series centers on a 4-year-old boy named Caillou who is fascinated by the world around him. 

From joy to wonder, from mishap to delight, Caillou learns about the world around him. 

Titles include: 
Caillou 
- sleeps over 
- goes to work 
- rides on a plane 
- The Hiding Place 
-Rides a bike 
- and Gilbert 
- The circus parade 
- Dress-up with Daddy
 - What's that funny noise? 
- Learns to swim 
- the firefighter 
- Happy Halloween
 - Training wheels
 - The jungle explorer 
- Puts away his toys 
- The School Bus
 - The phone call 
- and the Rain 
- is Sick 
- Walks his dog