I am just a layman who loves to study the Bible and occasionally get a chance to teach a few hungry souls from time to time. I have discovered that over the decades I have been on this earth, that I am one of those people who study the Bible much more than the average person in the pew. When "Unseen Realm" came out I quickly dismissed it as something I had already studied years ago. Then I read a Logos blog about the book and realized it was much more than I thought it was going to be. I bought the book and first read it through, then spent the next year studying it, checking cross references, footnotes, and the authors additional notes on the website. This has been one of the most rewarding studies I have ever done. I felt pretty secure in my understanding of the OT. After thoroughly studying this book it is as if my black and white picture of the OT has been transformed into high definition color. Get this book, roll up your sleeves, and dig in. The time spent studying this gem as opposed to just reading it is time well spent. You will reap much more than what you put into it.