Some tech advancements seem so useful and simple that it’s weird they weren’t invented sooner. Famously, wheels weren’t added to suitcases until 1970, despite the fact that wheels and suitcases had ...

Display your current book's cover on your Kindle lockscreen -- give your E Ink reader a face. Supported models: Standard 8th+, Paperwhite 7th+, Oasis (all), Voyage 7th+, Colorsoft. Only available on ...