Take a photo of a barcode or cover
Not going to lie, the first half was entertaining to follow along with but it loses me really fast in most parts. I have not finished it and its probably one of the shortest books I've bought and attempted to read, which says a lot. I understand it has deeper connotations with Voltaire's world view being interweaved within the story, but I stopped being interested. I might want to read one of his essays instead.