Revised Edition Charted Mathematics from Basics III Revised Edition Charted Mathematics from Basics II+B Set of 2 books - Publisher: Kenkyusha Publishing - Target Grade Level: High School 3rd Year - Year of Publication: 2023 Both books appear to be in good condition internally, but please note that as this is a casual inspection, there may be overlooked writing. The answer key for Mathematics III has a crease on the first page. Please refer to the photos. Although there is not much evidence of use, there are some scratches on the cover due to storage. Please consider this item as used and understand the condition before purchasing.