Book: The Zodiac Killer, Group Theory No Nine [On Hold until Further Notice]

Available at Barnes & Noble Books, Order Online

I republished on 12/15 with better paper, higher quality photos (there are lots), margin correction and a price hike to $29.99. I make a very small royalty, I just did not want to put out a shoddy product. Available online once again. May be purchased in their stores as well soon. If you buy…please leave a review. Good, bad or indifferent: it does not matter to me. Critical thinking is more important. Try to leave at least a 3 star though. Thanks. It’s a beautiful book, and I’m very proud of it. (12/20/2023)

The Wheel of Fortune….Albrecht Durer, middle.