Today's the last day of Amazon's October Prime Day. Shop deals on Kindles, flagship e-readers, and accessories while the sales last.

Amazon sales like Prime Big Deal Days are one of the best times to buy a Kindle on the cheap, but they can also be a great time to pick up e-books. For the first day of the two-day event that is Prime Big Deal Days, Amazon has marked down tons of e-books, from self help to fiction and children's books, for prices as low as $1.99.

During Amazon Prime Big Deals Day on October 8 and 9, you can save big on a few popular Kindle models and thousands of e-books. Below, we’ve rounded up our favorite Kindles and novels to stock up on—but the sales event ends tomorrow, so we recommend adding these to your cart sooner (rather than later).