Book excerpt: How Oliver Olson Changed the World is an irresistible chapter book from Claudia Mills, featuring lively illustrations by Heather Maione. Oliver Olson learns that before you can change the world, sometimes you need to change yourself. Oliver Olson's teacher is always saying that one person with a big idea can change the world. But how is Oliver supposed to change the world when his parents won't let him do anything on his own—not his class projects or even attending activities such as the space sleepover at school. Afraid he will become an outsider like ex-planet Pluto, Oliver decides to take control of his corner of the universe!