"The mouse, despite all of its admirable qualities, was created
by a left-brained thinker and built for left-brained work. Mostly
that's fine, but when it comes time to draw an icon or retouch a
photograph, you'll be cursing your mouse as the worst input device
imaginable--awkward to hold, awkward to move with, and awkward to
click. To get the right side of your brain happy, you need a
pressure-sensitive tablet. Here is how to get started in Linux.
"Pressure-sensitive tablets have a flat surface attached to the
computer via serial, USB, or Bluetooth connection. They read the
motion, pressure, and tilt of special handheld 'pen' and 'brush'