What is the last book of the New Testament?

Revelation is the last book of the New Testament.

Also called the Book of Revelation or the Apocalypse of John, it is the 27th and final book in the standard New Testament canon. The text begins with letters addressed to seven churches in the Roman province of Asia and then presents a series of visions involving heaven, judgment, symbolic creatures, and the ultimate defeat of evil. Its closing chapters describe a new heaven, a new earth, and the New Jerusalem.

The book is traditionally associated with John and says that its author received the visions while on the island of Patmos. Most scholars distinguish this author from the writers of the Gospel of John and the Johannine letters, although the question of authorship remains debated. “Apocalypse” comes from a Greek word meaning an unveiling or revelation, not simply a catastrophe.

Readers sometimes confuse Revelation with Revelations, but the canonical title is singular: Revelation. It is also important to distinguish the last book from the last book written; the chronological order of New Testament composition is not the same as the order of the biblical canon.