Country Girls 1st OFFICIAL BOOK (カントリーガールズ1st OFFICIAL BOOK) is the first book by Country Girls. It was released on September 24, 2016. The book features gravure, interviews, and Q&A that have been published in the UTB+ magazine in the past year, and a complete compilation of the group climbing Mount Fuji over two days. A video of the climb is also included in a large volume DVD.