The cover illustration depicts Sophie, the protagonist of the story, standing confidently in front of a group of students with a math problem on a whiteboard behind her. Sophie has a determined expression on her face, and she is holding a pencil and a notebook, ready to tackle any challenge that comes her way. In the background, there could be colorful illustrations of mathematical symbols, equations, and geometric shapes. The overall tone of the illustration is bright, cheerful, and inspiring, with a focus on Sophie's bravery and love for math. | Anything