For a book with a message, I should be at a 2 or 3. But the illustrations evoked an immediate response in me that made me read and reread the book a few times. Maybe it reminded me of when I was a kid and grandma let us draw on the big formica table in the kitchen. We would design complicated cityscapes from a bird's eye view--with the idea that we would play cars and other toys on the plan, but somehow we never got to the playing just the designing. Just a lot of fun to look at and see the palette change to trace out the areas where the boy had been at work.