Understanding the value of negative space in the context of drawing is a vital component to helping you to improve your drawing skills. It’s like being given the secret of how to do a magic trick. Quite simply put negative space is that surrounds an object while positive space is the space that is the object itself. Once grasped you will look at pictures in a different light. Playing with negative and positive space is something that graphic artists have used in advertising since the 1960s.
When you go to galleries look at the paintings and spot the negative spaces and see how they in fact ‘hold’ the image together as much as the objects themselves.