Set of 3 books Miscellaneous facts book sale ① "Kotoba no Omoshiro Hakugaku" (The Fun of Words Encyclopedia) Compiled by: Zatsugaku Kenkyukai (Miscellaneous Facts Research Group) Cosmo Publishing ② "THE ZATSugaku BOOK" (THE Miscellaneous Facts BOOK) Compiled by: Freelance Zatsugaku Writers Cosmo Publishing ③ "Taikutsu Shinogi no Nihonshi Bikkuri Bon" (A Surprising Book of Japanese History to Kill Boredom) Compiled by: Rekishi no Nazo wo Saguru Kai (History Mystery Exploration Group) Seishun Publishing ⭐️ If you want to purchase a single book, please contact me. ⚠️ Please understand that these are used books and have been stored at home for a long time, and may have age-related deterioration such as sun damage. *For shipping, I will use recycled bags and other materials I have at home for the outer packaging. #Kotoba no Omoshiro Hakugaku #Zatsugaku Kenkyukai #Cosmo Publishing #THE ZATSugaku BOOK #Freelance Zatsugaku Writers #Cosmo Publishing #Taikutsu Shinogi no Nihonshi Bikkuri Bon #Rekishi no Nazo wo Saguru Kai #Seishun Publishing #Humor Human Club #Books #Language/General