The author of the last book in the New Testament, The Book of Revelation to John, was most likely a disciple of John the Apostle. The author of Revelation called himself John and referred to the apostle's teachings, but uses a unique grammar, vocabulary and style.
Revelation is the most well-known example of apocalyptic writing in the Bible, using symbolic and allegorical language and leaning heavily on the Old Testament books of Daniel, Ezekiel and Zechariah.It is difficult for a modern audience to understand. This book has been the source of many Christian beliefs including an apocalyptic end to the world, the mark of the Beast, the rise of an Antichrist and the ultimate triumph of God over Satan. Some theologians, however, believe these interpretations are far-fetched and that instead the book referred to incidents contemporary to the writer, who was imprisoned near the end of the first century A.D.