The Alien Book: A Guide To Extraterrestrial Beings On Earth

  • Length: 416 pages
  • Publication Date: 2019-09-01

The Martians: Evidence of Life on the Red Planet

  • Length: 304 pages
  • Publication Date: 2020-10-01

Extraterrestrials

  • Length: 240 pages
  • Publication Date: 2020-04-07