A set of 4 Doraemon educational manga that teach the wonders of science in a fun way. Mysteries of Light and Sound Mysteries of the Universe Dinosaurs and Lost Animals Become Strong with Information All books have minor scratches. Two of the books have torn and damaged covers (photos 4-6). The inside pages are in readable condition. Please consider them as a bonus. These are being offered at a low price, so please refrain from negotiating a price reduction. I would be happy to sell them to someone who understands that they are used items.