The Amazon Kindle is a great little device which stores it’s documents unencrypted and unhidden on it’s hard drive, just like you would on your PC. This means you can add and remove documents as though it was a USB drive. It’s that easy.
But on Ubuntu when you plug it in, nothing happens.
The reason for this is that the Kindle uses the Media Transport Protocol (MTP) to communicate via USB. By default, Ubuntu doesn’t know how to use this protocol so it ignores it. Luckily, you can fix this with one command (run from the terminal):
sudo apt-get install mtpfs
Once this is done, simply unplug the Kindle and plug it back in again