Before we go any further, keep in mind that the Kindle app from the Microsoft Store is no longer available. As it stands, then, you must download the official software directly from Amazon ...

Your Amazon Kindle reader can do much more than access Amazon's library. Here's how to sideload content onto a Kindle.

For Amazon, it meant paying a hefty 15% commission ... After you've bought the book, it'll be available in your library on the Kindle app for you to download and read.

The Amazon Kindle is a great ebook reader, but it's tightly tied to Amazon's ecosystem. If you have a Fire tablet or a smartphone, you can download other e-reading apps to beef up your library ...