Koguma-kai Hitori de Tokkun Set of 3 books 52 Kaiten Zukei (Rotation Figures) 97 Zukei Bunkatsu 3 (Figure Division 3) 88 Rittai to Tenkaizu (Three-Dimensional and Development Drawings) All are relatively clean. (The "Kaiten Zukei" is also included in another item I have listed, but I accidentally bought two copies. Please be aware that if you wish to purchase these together, there will be a duplicate.) ◯ I scanned everything and printed it out, having my child repeat the exercises. ◯ There are probably no pen markings, but please forgive me if I missed any. These are being offered at a low price because they are used. Thank you for your understanding.