II John is a book in the New Testament. It is one of the five biblical books which consists of a single chapter in the modern Bible. It was probably written in about 90 A.D. from Ephesus. Some speculate that II John was a sort of cover letter for I John, while others say the two were clearly meant for different audiences.
The author identifies himself as John, historically considered to be the Apostle John, who also wrote the Gospel of John along with I John, III John and the Book of Revelation. Liberal theologians disagree, conceding only that all three epistles were likely written by the same person.