This is a set of volumes 1-22 of Space Brothers. I purchased them new and only read volume 1 or 2, then stored them. They are in beautiful condition with almost no folds, writing, or stains. I don't think there's much deterioration due to age, but please check the photos carefully before purchasing. The obi (paper bands) are missing from volumes 3, 4, 12, 15, 16, 19, and 20, but are present on the others. Please understand that these are used items, even if they have been stored unread.