This innovative book lets you read several different views of Revelation by placing them side by side. In most cases, you get Dispensational, Historicist, Amillennial and Postmillennial points of view. But in some places [such as the letters to the 7 churches] a different aproach is needed, and is given. Often people are totally unaware there is more than one view, and this is where books like Gregg's are so helpful. If they make you less certain, this can only be a good thing, where things are not as clear as some would like to make out. Highly recommended.