I first read this book as a child and still have it thirty something years later. It's a great little story of a small boy, Harold, who has a magic crayon which brings whatever he draws to life. He sets off on a great adventure, drawing the path as he goes. Wherever he goes, the moon goes with him. Harold's adventures lead him near and far until he gets rather lost. While looking for his house and his bedroom window he ends up drawing a whole city full of windows but none of them is his. Finally, Harold remembers that his window is always right around the moon. He draws his window and after making his bed, jumps in it and draws up the covers. As you might expect the book has very simple line drawings but they are quite effective. I've used this book with young children and they loved it.