My son is 16 months old and he loves this book! It has been so helpful in trying to prepare him for becoming a big brother. Even though he is young, we are able to tell him about what babies can and cannot do so he will be ready when his brother arrives. I think out of all the books we bought, we will be able to reinforce more about babies with this book than any of the others. I would definitely recommend it to anyone who needs to prepare a child for a new siblings arrival!