Real space is three-dimensional. Space in a work of art refers to a feeling of depth or three dimensions. It can also refer to the artist's use of the area within the picture plane. The area around the primary objects in a work of art is known as negative space, while the space occupied by the primary objects is known as positive space.
In order to better understand positive and negative space you create cut-outs of letters in black and white. You must be able to label which area is positive and which is negative. White paper will represent positive space and black paper will represent negative space.
To begin you will need a white and black square. Draw out your first initial as large as you can. It needs to be so large it goes slightly off the paper in a few areas.
Next cut out the letter as one piece and glue it on the opposite background. Put these in your sketchbooks and label which areas are positive space and which are negative space. White areas represent positive space and black areas represent negative space.