You can see the memory within the device like an external USB Hard Drive. A complete back up of the files on the Kindle can be made to your own computer (in addition to the "cloud" back up supplied by Amazon). MP3 files can be dropped into the music directory.
The text is very clear and, for those with failing eyesight, the font size and line spacing is adjustable, right up to very large print.
You know you are hooked once you try to turn the page without using the buttons!!