Ruthie and her mother wonder how they will fulfill their obligation of getting the perfect Christmas tree to the town for the holiday celebration, since Papa has left the Appalachian area to go to war.

When Dorothy was a young girl, she loved books, and she loved people, so she decided that she would become a librarian. Dorothy's dearest wish is to be a librarian in a fine brick library just like the one she visited when she was small. But her new home in North Carolina has valleys and streams but no libraries, so Miss Dorothy and her neighbors decide to start a bookmobile. Instead of people coming to a fine brick library, Miss Dorothy can now bring the books to them-at school, on the farm, even once in the middle of a river! Miss Dorothy and Her Bookmobile is an inspiring story about the love of books, the power of perseverance, and how a librarian can change people's lives.