Infinity and Me
Philosophical and mathematical exploration for children.
It's basically a bunch of different ways of understanding the idea of infinity, framed in a way that the eight-year-old protagonist can understand it. Mathematical ways, personal ways, the number of stars in the sky, a giant number, things that go on forever, how many times you can cut a noodle in half. It's a good introduction to the concept of infinity and mathematics, especially the fact that it's hard for pretty much everybody to understand. The art is really engaging as well.