I purchased these items almost new. They were used for copying, so there is hardly any writing in them. In total, I put check marks on about 5 or 6 pages with erasable pencil. - Publisher: Koguma-kai - Price: 1100 yen ・Koguma Work Coloring Book - Publisher: Koguma-kai Hitori de Tokkun - Price: 660 yen ・9 Figure Series ・21 Observation from Four Directions 1 ・35 One-to-One Correspondence ・39 Axial Symmetry ・46 Increase and Decrease of Numbers ・47 Stacked Figures ・52 Rotational Figures ・54 Scientific Common Sense 1 ・55 Scientific Common Sense 2 ・57 Using Graph Paper ・72 Character Practice 1 ・74 Seasons ・78 Old Tales ・81 Mirror Image ・88 Three-Dimensional and Development Drawings - Publisher: Koguma-kai Hitori de Tokkun - Price: 660 yen - Publisher: Riei-kai - Price: 770 yen • Scientific Common Sense: Living Things 79 • Scientific Common Sense: Living Things 80 • Scientific Common Sense: Plants 81 • Scientific Common Sense: Plants 82 • Scientific Common Sense: Nature & Science 83 • Scientific Common Sense: Nature & Science 84 • Sounds & Word Chain 98 Comprehension of the Content of the Story: Oral Question Collection 1, 2 Interview Practice Can I Do It Myself? etc. These are being sold as a set.