By Dr. Alan D. Clark
Ok, this is a Baha'i book, so while I highly recommend it, if you go in without knowing that, you could be surprised. Even if you're not a member of the Baha'i religion (UPDATE: as I no longer am), some of his interpretations might still intrigue you.
The gist of the Baha'i belief is that Christ did return already, in the middle of the nineteenth century, as a Persian nobleman named Baha'u'llah. This book suffers a bit from the standard logical fallacy of taking this interpretation and working backwards to prove it. Luckily, it is not preachy and the author stresses in the introduction that this is only his own interpretation, and that we are responsible for investigating everything ourselves. It is well-researched and scholarly, but if you're looking for something that compares various theories of Revelation or is strictly impartial, this is not it. However, the most common Christian interpretation of Revelation is tossed around so often (as in the Left Behind books) that it's nice to see a totally different idea.
Here are the basic concepts presented:
Again, there are some fascinating ideas here. The most interesting parts are learning about Islamic history and especially that of Persia (Iran). The number symbols are pretty neat, too. It is also impressive how many quotes from the rest of the Bible the author references. The book is organized clearly: the author simply examines every passage in order. I would say that one third of his analysis is riveting and convincing, another third is plausible extrapolations from that most cogent third, and a final third is a bit of a stretch, in which we must concede much of the Book's secrets still remain sealed.