The Unseen Realm (Expanded Edition): Discovering the Supernatural World of the Bible

by Michael S. Heiser

New edition of a bestseller (over 175k copies sold) that features more content from Michael S. Heiser To celebrate its tenth anniversary, The Unseen Realm Expanded Edition features a deluxe hardcover format and new content from Heiser never before available in print, further unveiling the unseen realm.

730 pages, Kindle Edition

Published October 1, 2025

About the author

Mike Heiser is a scholar in the fields of biblical studies and the ancient Near East. He is the Academic Editor of Logos Bible Software. Mike earned the M.A. and Ph.D. in Hebrew Bible and Semitic Languages at the University of Wisconsin-Madison in 2004. He has also earned an M.A. in Ancient History from the University of Pennsylvania (major fields: Ancient Israel and Egyptology). His main research interests are Israelite religion (especially Israel’s divine council), biblical theology, ancient Near Eastern religion, biblical & ancient Semitic languages, and ancient Jewish binitarian monotheism.

Mike blogs about biblical studies at The Naked Bible, and fringe beliefs about the ancient world at PaleoBabble. He offers courses to the public in Old Testament, biblical theology, Israelite religion, ancient languages, the Book of Enoch through his online institute, MEMRA.

Mike's other academic interests include the paranormal and the occult. His UFO Religions blog discusses how the pop cultural belief in aliens shape religious worldviews. Mike has been a frequent guest on a number of radio programs such as Coast to Coast AM. He is best known for his critique of the ancient astronaut theories of Zecharia Sitchin and his paranormal thriller, The Facade, which intertwines many of his interests.

Reviews

[JL Mars · Rating 3 out of 5]

I have so much respect for Michael Heiser as an academic and a human being, and my 3-star rating is reflective of the very high esteem in which I hold him and this behemoth of an academic work. That said, I was expecting far more "supernatural" and far less theology from this book based on the hours of lectures I've watched him give. It read far more like an apologetics/theology textbook and far less like his video content/lectures led me to believe. Again, I have nothing but respect and admiration for his legacy and his work, but unfortunately this extensive, respectable tome was not relevant to my research.

[Joel Wentz · Rating 5 out of 5]

Very, very good. An improvement on the original edition, both in content and in design. I still have some unanswered questions, but this is an outstanding book that carefully and clearly defends its main arguments.

Full video review here: https://youtu.be/Z2hTwpcTzeY