I was very disappointed and shocked when I first read this book. My jaw literally dropped.Caillou is portrayed as a very naughty child who regresses in development and displays poor behavior after his sister is born. He wets his bed, wants to drink from a bottle, bites his sister, and throws a doll against the wall that happens to look just like Rosie. I find this book very inappropriate to read to a young child; and I am saddened to see Caillou portrayed this way; especially knowing how much my daughter adores him.

In this book, Caillou models all kinds of acting-out behavior. Although it may be dealt with effectively, I feel it will put the wrong kinds of ideas in my child's head about behaviors. While the feelings Caillou tries to express are definitely valid and normal, I don't think I need to give her any ideas about biting or hitting.

I bought this book for my son right before his sister was born but the little boy in the book talks about hurting his sister and I think that is a very bad example. The idea is good though, for talking to a toddler about having a sibling.