L. Ron Hubbard

The Invaders Plan (Mission Earth Series, Vol 1) is a 1985 book written by L. Ron Hubbard.

Battlefield Earth: A Saga of the Year 3000 is a 1982 science fiction novel written by the Scientology founder L. Ron Hubbard. He also composed a soundtrack to the book called Space Jazz. The subsequent film adaptation, released in 2000, was a commercial failure and was criticized as one of the "worst films ever made".