There are writings on 13 pages in total, with red pen markings. Mainly on the pages about map symbols, the city's conditions, and accidents/incidents. Please refer to the photos. Answer key included. Some dates and ranges are written. Please forgive any oversights. The writings cannot be erased. Only the academic ability diagnostic test remains in the end-of-book tests. Used by a child, stored at home, please consider this used item with understanding.