The Book of Fallen Angels
The Encyclopedia of Hell: A Comprehensive Survey of the Underworld
The Books of Enoch: The Angels, The Watchers and The Nephilim: (With Extensive Commentary on the Three Books of Enoch, the Fallen Angels, the Calendar of Enoch, and Daniel's Prophecy)
Encyclopaedia of Hell: An Invasion Manual for Demons Concerning the Planet Earth and the Human Race Which Infests It
Devils and Demons and the Return of the Nephilim
Fallen Angels Among Us: What You Need to Know
Fallen Angels, the Watchers, and the Origins of Evil
Fallen Angels and the Origins of Evil
Encyclopedia of the Undead: A Field Guide to the Creatures That Cannot Rest in Peace