The eBook deal of the day today for the Amazon Kindle is the 1982 science fiction novel Battlefield Earth: A Saga of the Year 3000 by L. Ron Hubbard for only $.99.

Note, this deal is valid only for today, Friday, September 2, 2011, until midnight PST.

If you’d like to own a physical copy of Battlefield Earth, the book is also available in hardcover for $21.86 and paperback for $7.99. The paperback edition is currently part of Amazon’s 4-for-3 promotion, where you can purchase four select items for the price of three (see the Special Offers and Product Promotions section of the product page).