Science Comic Survival Series, set of the following 2 books: ① Survival in the Sea ② Survival in the Volcano Overall, there is some yellowing, but I believe they are readable. Simple alcohol cleaning has been done. I hope you will consider purchasing after understanding that these are used items. * Even during price negotiations, priority will be given to the person who purchases first. * The actual colors may differ from the photos due to lighting conditions. * There is a possibility of overlooking stains or writing. * These are used items, so there may be differences in subjective impressions depending on the individual. Please check the photos and understand before purchasing. * Please refrain from purchasing if you are sensitive to used items. * The shipping method may be changed from Rakuraku to Yuyu, or vice versa. * I will not respond to unreasonable price negotiations. * I will ignore offers without a specific desired price, such as standard phrases. Please feel free to ask any questions to prevent trouble.