A 21-volume set plus 2 supplementary volumes for learning Japanese history aimed at elementary school students, with a panoramic chronology. - Product Name: Japanese History - Volumes: 23 volumes total - Bonus: Includes a panoramic chronology - Target Audience: Elementary school students - Publisher: Shogakukan Thank you for viewing. This was purchased for my middle school child, who disliked social studies at the time. Only a few books were read, and there are no noticeable scratches or stains. There are some scuffs and dents on the outer box. Please consider purchasing with the understanding that this is a used item.