The Extraterrestrial Species Almanac: The Ultimate Guide to Greys, Reptilians, Hybrids, and Nordics
- Length: 288 pages
- Publication Date: 2021-01-01
The Alien Book: A Guide To Extraterrestrial Beings On Earth
by Nick Redfern
- Length: 416 pages
- Publication Date: 2019-09-01
Hidden History: Ancient Aliens and the Suppressed Origins of Civilization
by Jim Willis
- Length: 464 pages
- Publication Date: 2020-05-01
The Martians: Evidence of Life on the Red Planet
by Nick Redfern
- Length: 304 pages
- Publication Date: 2020-10-01
