Amazon is adding a new artificial intelligence (AI) feature to Kindle devices that will help users quickly refresh their memory while reading a book series. Announced on Wednesday, the new feature ...

To use a pulse oximeter, you'll clip the device on your toe, finger, or earlobe — here's to use it properly so you can get an accurate reading. Visit Insider's Health Reference library for more ...

At first glance, your Kindle might seem like a no-frills reading device: straightforward, minimal, and focused on the basics. Kind of like an actual book, huh? But beneath its simple exterior lies ...