Problem book for developing thinking skills using illustrations and figures. - Title: Hirameki Drill 1 - Title: Hirameki Drill 2 - Title: Hirameki Drill 3 - Contents: Problem book using illustrations and figures - Contents: Practice problems to cultivate thinking skills - Target age: For preschoolers and elementary school students The cover has some sun damage. Since it was used by making copies, all pages have been cut from the backing. No tears or writing. Includes answers. Please purchase if you don't mind minor edge wear, etc., as it has been stored at home.