Negative Space.

Negative Space is the part of the picture that you did not draw. It is the extra space left on the paper that is not colored on.
In my drawing I found negative space by placing the parts of the picture that were positive space on the picture.
I was not here for the stool drawing.
This helps an artist see negative space because it's the opposite color and it is the opposite part of the picture.
Seeing things in negative space does help enhance drawings because you can see more in the picture.