Beyond Earth: Man's Contact with UFOs  by Ralph and Judy Blum gets a flashy 1978 edition from Bantam Books. See also this sinister 1976 ...

Pretty as a picture, a painted cover for Brad Steiger's  Atlantis Rising , from Sphere Books, 1973. And a sinister looking 1976 reprint ...

Some wild and woolly encounters, from Villas-Boas to Pascagoula to Betty and Barney Hill. "The authors predic...