I'm Bigger Than You (Library Binding) (ISBN-13: 9781682973165)

George loves to remind his little sister Lottie that he is bigger than her and therefore gets to do more grown-up things. They argue about it all the time! When they go to the fun fair, George is quick to jump on the Super Duper Big Dipper Roller Coaster while Lottie stays behind. He soon realizes that perhaps he's not quite big enough for some things yet either. Mom and Dad teach George that it's OK not to be ready for some things yet and that there are some things you're never too old for! An amusing story about sibling rivalry with a message of growth and patience.