This is a book for adults that explains the techniques for conveying your feelings without irritating the other person. "Elegant Way of Poisoning: The Neuroscience and Kyoto People's Techniques for Smartly Conveying Difficult Things" I purchased it at a bookstore in November and read it once. It was kept in a book cover. Although there may be some oversights regarding stains, it is in good condition. Thank you very much. Thank you for looking. Please refrain from purchasing if you are a nervous person, as it is stored at home.