A set of 4 books by renowned authors exploring human relationships and the state of the heart. - Title: Living with Loneliness - Author: Jakucho Setouchi - Title: Interesting People, Boring People - Author: Hidetake Takashima - Title: Competitive Spirit - Author: Akira Watanabe - Title: Immovable Mind - Author: Hideki Matsui ↑ These two books have a few pages with pink highlighter marks. These items have been stored at home. Some books may have stains, discoloration due to aging, and sticky residue from stickers. Please check the photos and understand before purchasing. Shipping will be via Yu-Packet Post. I will ship promptly. Thank you for looking.