Problem book to train reasoning and logical thinking. - Title: High-Level Area-Specific Problem Book - Target Grade: Kindergarten (Year 6) - Publisher: Jack Preschool Education Institute - Contents: Reasoning problems, mazes, shape problems, etc. - Problem Types: Shapes, mazes, logical thinking Thank you for viewing. I purchased this item, which had been used partially. Pages with heavy writing have been discarded, so several pages at the beginning are missing. The memory of stories section is completely clean, with all pages present. The shape problems have the most writing, with about half the pages remaining. The problems are quite difficult, so please consider purchasing this used item if you understand that completing all the problems may be difficult. There are some date markings on the answers as shown in the photos, but this does not affect use for home study.