Core Curriculum Core Curriculum Key Points Core Curriculum Master Latest Edition Revised 9th Edition All volumes 1-3 are included. Set of 6 books Core Master is mostly unused. Core Curriculum is also mostly unused except for vol. 1. There is some light writing, but I will erase anything I notice. Please check the condition of the product in the images. I think the contents are in very good condition, but the covers and other exteriors show signs of use from home storage. Due to home storage, they are not as clean as new. Individual perceptions may vary, so please refrain from purchasing if you are sensitive to this. As it is the latest edition, the price is expected to increase in the future. Retail Price Core Curriculum Key Points 3 books Regular price (tax included): 13,200 yen Core Curriculum Master 3 books Regular price (tax included): 19,800 yen The retail price is over 30,000 yen.