This is a set of five books from Hoikusha's JR Vehicle Series: two on JR East, two on West Japan, and one on Kyushu. They were published between 1989 and 1990. Although they were published quite a while ago, they were stored on a bookshelf, so the condition isn't perfect. However, there are no significant creases, and while individual perceptions may vary, I believe they are in quite good condition. They are no longer available, and this condition is rare. I hope those looking for these books will consider purchasing them.