First released more than 15 years ago, Amazon Kindle e-readers have improved with every generation, adding improved displays, features like wireless charging, the ability to take notes, and so much ...

A glitch can remove books from the Kindle, showing an "Item Not Available" message, but no panic needed. Delete the offending file, reboot the Kindle by long pressing the sleep/wake button, and then ...

Kindle devices appeal to many people. When everything works, they're great. But Amazon is becoming more and more finicky, both in terms of supported formats and the freedom to manage your own books.