Can you recommend a book about Revelation that would be helpful?

I would recommend the book Footsteps of the Messiah, by Dr. Arnold G. Fruchtenbaum. Footsteps of the Messiah is a commentary on the Book of Revelation. It approaches the Book of Revelation from a point of view that is different from the vast majority of commentators. Dr. Fruchtenbaum has taken the chronological approach and has made extensive use of the Old Testament in his interpretation. (See HaDavar’s products page on this web site.)