This is a used book, but it has no folds or writing. It's a book that was talked about on TV for a while. I'm selling it to anyone who is interested. Important books on Japan's demographic trends and future predictions. - Title: Future Timeline - Author: Masashi Kawai - Publisher: Kodansha - Content: Predictions about population decline and its impact - Title: Future Atlas - Author: Masashi Kawai - Publisher: Kodansha - Content: Detailed analysis of Japan's demographic trends Thank you for looking.