Volumes 1-20, with only volume 19 missing. Volumes 15, 16, and 17 have clear book covers. Please check the photos for the product contents and condition. There are no major scratches or stains, but there is some yellowing. Please consider this a used item and understand that it has been stored at home (＞人＜;) No pets, no smokers. If you have any questions, please ask in the comments^_^