Is it there to irritate you?
Is it there to get your brain working and think and trouble yourself with this question?
Is it there so you can "draw" with your imagination and say you drew a beautiful castle when all it is, is a line? Which would then just make it a sick lie about what you drew :O
Most Helpful Girl
As you can see there is a lot of art work you can do with a white crayon, especially in a black sheet of paper, a white crayon is very useful.
Most Helpful Guy
Were you aware that there are other colors of paper beside white? Many art projects need a large amount of color other than white, so using that color paper works best.
Also, if you have a block of color and need a white line through it, or lettering on it, would you prefer to scrape a line through it with a knife?