Mail Harry to the Moon by Robie H. Harris, Illustrated by Michael Emberley
Another new baby anxiety/jealousy book. The story is short and sweet. The older brother doesn't like the new baby, Harry, getting all the attention, chewing on his toys, etc. He comes up with some very creative solutions - flush the baby down the toilet and the title of the book. When the baby is missing the next morning, the boy believes his brother really did get mailed to the moon and starts his imaginary journey to the moon to rescue him.
The illustrations are clear, cartoon-y and amusing. Drawn text takes up most of the page during the shouting scenes.