The Kindle Unlimited program is $10 a month, and it gives you access to over a million books and comics on Amazon. Amazon is currently offering a deal: 3 months for 99 cents a month. The program includes a lot of popular books: the Harry Potter series, The Handmaid's Tale, the Hunger Games trilogy, the Lord of the Rings trilogy, and even comics, like Kelly Sue DeConnick's Captain Marvel and Neil Gaiman's Sandman.
Good deal on Kindle Unlimited
