A set of 20 volumes plus 2 supplementary volumes. Content that makes learning history fun. - Set includes: World History, all 20 volumes + 2 supplementary volumes - Publisher: Shueisha - Price: Regular price 21,000 yen - Number of volumes: All 20 volumes - Bonus: Character index included Thank you for viewing. Since my children are no longer at an age to read them, I would like to pass them on to someone who will use them. The books themselves are in good condition, but the outer box has some stains, so please refrain from purchasing if you are concerned.