Add indie sci-fi books to your digital library for free in the latest Stuff Your Kindle Day

FREE AND DISCOUNTED BOOKS: The latest Stuff Your Kindle Day takes place on March 7-10. You can choose from a selection of indie sci-fi e-books for free or with a large discount. Stuff Your Kindle Day is a great time to stock up your digital library. If you've had sci-fi books on the brain, you're in luck: thanks to Indievisible you can score a variety of sci-fi books for free or at a discounted rate. This is part of the Indie Author Spring Spectacular, which runs through March 10.