A young girl sees the world differently in this beautiful picture book celebration of math. Everyone has a passion. For some, it's music. For others, it's art. For our heroine, it's math. When she looks around the world, she sees math in all the beautiful things: the concentric circles a stone makes in a lake, the curve of a slide, the geometric shapes in the playground. Others don't understand her passion, but she doesn't mind. There are infinite...