The book is a commentary on preaching from the book of Revelation. Working through the book of Revelation verse by verse, the commentary seeks to help the preacher recognize what the book (with its apocalyptic theology) invited people in antiquity to believe and do. . . . The book of Revelation communicates through a series of word-pictures. Allen explains each word-picture in light of its ancient setting. The commentary brings the viewpoint of the book of Revelation into conversation (through...