The surreal image on the book-cover is by Eli Huerta and depicts an impressionist perception of the Industrial Revolution. The darkening of the air and the water is reminiscent of the opening of the bottomless pit in Revelation and is the reason such imagery was chosen for the cover of this book, as it fits well with its theme. And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit. (Revelation 9:2)