Kazuhiko Uraga This is a set of 6 books as shown in the photos. They have been stored at home for a long time, so there are signs of wear, discoloration, stains, and warping. Some were originally purchased used, and sticker residue remains from price tags. Please check the condition in the photos and only purchase if you understand. Please understand that these are amateur-inspected, used items, and have been stored at home before purchasing. Thank you for looking.