Exercise 7 Draw negative spaces

It is easier to draw the positive spaces if you focus and draw the negative spaces.
By focusing on the negative spaces and drawing them instead of the positive spaces, we force our minds to process visual information exactly as we see it at that moment instead of drawing what we logically think we see.
Colouring the negative spaces with your darkest pencil will help you to train your brain to see these empty spaces as shapes and draw them accurately.
As artists, we draw negative spaces all the time. It is one of the invaluable techniques we use to draw something realistically.
This video demonstrates exercise 7 in Drawing Basics for Beginners on drawing negative spaces.