Before too long, it’ll be warm enough to spend a day at the park or beach reading a book, so if you want to get your hands on a new Kindle e-reader, both the entry level model and the Paperwhite are on sale today for $20 off. My advice: Get the Paperwhite. It’s not that much more expensive, and it’s worth it just for the backlight, not to mention the sharper, higher contrast screen.