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).

Right now, Amazon Prime members can get three months of Amazon’s library-like book subscription plan for free. Kindle Unlimited is normally priced at $11.99/month after a one-month free trial. Read so many books and save $36 in the process. Sign us up!