This is a science reference book used in Hama Gakuen classes. Elementary School Science Learning Dictionary Visual Science It's an easy-to-understand reference book with many illustrations and photos. These books show signs of use, but I think they can still be used, so I'm offering them as a set of two at a low price. Please understand that these are used items. I am not offering discounts. I am not selling them separately. I am also not holding items. Thank you for your understanding.