This is a set of two books by Mitsue Hiragi: "Kororin Poi!" and "Kororin 123." I am selling them because my child no longer reads them. There is little soiling, but there are scratches and dents. Please check the photos. There are no missing parts or sections that can no longer be played with. As for "Kororin 123," my child didn't like numbers, so it was hardly opened... the inside is clean.