This is a set of books on business communication, writing, and sales techniques. Titles include: Tadashi Yasuda "Superb Conversational Skills" "Manga Guide to Superb Conversational Skills" Takashi Saito "The Art of Conveying Important Things in One Minute" "The Power to Write 10 Manuscript Pages" Naota Hamaguchi "The Rules of Work: Things That Are Obvious But Difficult to Do" Hisae Suzuki "Understand!! Be Able!! Sell!! A Salesperson's Textbook" These are the six books. They have been stored in a dark place after being read once, so there are no noticeable scratches or stains. Please refrain from purchasing if you are sensitive to the condition, as they are stored at home. ☆Instant purchase available