Negative space in an image is everything other than the focus of the image.
In my cut out, I explored negative space by inverting one side of the image. Having one side be the negative of the other causes your eyes to notice different details on opposite sides. The negatives compliment each other to make a more complete image.
In my negative space drawing, I found negative space by looking at the background rather than looking at the still life itself.
It helps an artist to see in negative space because as an artist, you need to be more observant than an average person. By being able to see the whole picture, the artist can understand what makes a good image.
Negative space is useful in creating art because typically you do not pay attention to it, but you subconsciously notice it. Art is not just about the subject of the image. It is about how the subject interacts with all other aspects of the image.