The Book of Revelation, also called the Revelation of St. John, the Apocalypse of John, and the Revelation of Jesus Christ, is the last book of the New Testament. It may be shortened to Revelation but never Revelations. It is the only book in the Canon that is wholly composed of apocalyptic literature. There has always been debate about
Revelation's composition as well as its trustworthiness. In the Catalog of Eusebius it is placed in the disputed category along with the the Epistle of Jude, the Epistle of James and the Gospel according to the Hebrews . The last book of the New Testament is commonly known today as the "Book of Revelation". The title found on some of the earliest manuscripts is "The Revelation of John" (Ἀποκάλυψις Ἰωάννου), and the most common title found on later manuscripts is "The Revelation of the theologian" Ἀποκάλυψις τοῦ Θεολόγου. The Greek word ἀποκάλυψις, sometimes rendered directly from the Greek as apocalypse, is usually translated in English as revelation, since the literal meaning of the Greek word is "the act of revealing or unveiling"). Some later manuscripts add Evangelist or Apostle to the title. The book is effectively composed with its title