A biographical novel in verse of seven girls from different time periods who used math to explore the mysteries of the universe and grew up to do innovate work that changed history.

Looking up: Caroline Herschel -- Making change with charts I: Florence Nightingale -- Exploring currents: Hertha Marks Ayrton -- Mapping what's hidden: Marie Tharp -- Creating paths through space: Katherine Johnson -- Making change with charts II: Edna Lee Paisano -- Looking beyond: Vera Rubin.