It would be really nice if the author could add a few images or a video of how it's used. I'm really, really bad at visualization.

The picture would mostly be a hand obscuring anything under it. I am not sure how that would be useful?

a couple of additional pictures would be useful. right now I don't haven't got an idea how to hold it. fun fact, I went to youtube what Logitech G13 is and the first video that has anyone holding it is not even in top results.

What do you mean? You don't hold it, it's a keyboard. You put your left wrist on the wrist rest, thumb on the joystick.

That's what they mean, using it.

took me a few minutes of looking at it all puzzled but I think if you go to the picture where he has the wrist rest put on it you can kind of see how it works. I think the wrist goes on the pad, thumb to the stick and your fingers will hit the keys. I do wish there was a video though.

Thumb on the thumb joystick?