"The Book That Develops the Vocabulary of Capable People" #VocabularyImprovementStudyGroup #Book #Society/General "The Book That Makes Your Heart Feel Wonderfully Comfortable" #HirokoMizushima "Is That Necessary? Tips for Living Simply Without Being Tied Down by Unnecessary Things" #Fudeko "Words That Are Liked the More You Use Them" #TetsuyaKawakami "Regaining Self-Esteem!" #AkiwaTakada "How Likable People Use Their Manners" #TakeyaYamazaki Set of 6 books. Alcohol-sterilized.