Battlefield Earth: A Saga of the Year 3000

Definitely one of the best science-fiction books ever written, probably top 15. The writing is solid and the story is sufficiently complex. The only thing really wrong with the book is the spelling and possibly grammar. I don't know Scientology well enough to pick up the themes throughout the book, but they certainly didn't diminish the book's worth.
Sadly, this seems to be the only novel by this author, which is really a shame.