We learned of this work during a recent trip to the "Unser Buch" ("Our Book") exhibit in Wittenberg. It is a fascinating work, and an impressive achievement.
The book, which consists of 3,333 images, was painted by Willy Wiedmann over the course of 16 years, although it was not discovered until after the artist's death. It contains extensive depictions of both the Old and New Testament, all presented in Wiedmann's unique polycon style.
We did not see the actual book, but the exhibit included a digitized version of parts of it, giving us a chance to see the (literal) unfolding of the story. It was the most memorable part of a very memorable exhibit.