A girl sees a woman labeled as having too much ambition, but when the girl considers its definition she finds herself inspired and realizes ambition is required to make changes to the world and have her voice be heard.

"Meet Hattie Harmony, Worry Detective. She's always there to help her friends when they need her. And the first day of school can cause a lot of jitters--from speaking in front of the class to taking the bus. Hattie always finds the perfect tools to calm her friends' bodies and minds. But when her own fears start to bubble up, can Hattie learn to overcome them herself?"--

Illustrations and rhyming text reclaim words often used to put down girls and women while introducing the letters of the alphabet.