Battlefield Earth by L. Ron Hubbard was first published in 1982 by L. Ron Hubbard and has become one of the seminal works of science fiction. The books focuses on Earth in the year 3000. The Earth is ruled by an alien race and humans are an endangered species, really nothing more than animals. Although the novel has been used as an educational resource by many, there has never been an approved and fully explained guide for that until now. Under contract...