There's a huge Marvel Digital Comics Sale, with graphic novels like Star Wars, Ms. Marvel, Daredevil, Infinity Gauntlet, Hawkeye, and more for under $2.20 each. There are some larger collections like Punisher Max for as much as $5.
If you subscribe to HBO Now, you get a $10 Amazon Credit.
The Kindle Daily Deals include a Aziz Ansari's Modern Romance, Marie Lu's Legend, and Nate Silver's The Signal and the Noise for $2.99 each.
In digital games, the GotY edition of Overwatch is $29.99 (50% off), while Fallout 4 with the Season Pass is $24.99 (50% off). Sid Meier’s Civilization VI Digital Deluxe is $39.99 (50% off), which is the same price for the non-deluxe version, so hey, free DLC.
And if you have an Amazon Fire, you can snag Monument Valley 2 for $2.49 (50% off), which is a great deal on a great game. If you've got younger kids, all Toca games for the Fire are $.99 (66% off). And Teeny Titans -- which is essentially an old-school Pokemon game with the Titans, and is genuinely great -- is $.99 (75% off) on the Fire.
There are a lot of movies on sale, but one notable one is Jack Reacher: Never Go Back for $4.99 to own digitally.
There's a ton more at the sale, if you've got the patience for the deep dive.