Having an Amazon Kindle e-reader is nice on its own, but if you're not using these free supplementary apps, you're missing ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Libby is the best app on my ...

You might be paying too much for your e-books when you can get them for free from your local library and read them right on your Kindle, Kobo, or even your phone. A lot of people don't realize their ...