Over the weekend I gave myself the challenge to draw exclusively in black and white and the various shades of grey to help myself see value better. I didn't get as many chances to draw outside this weekend as I would have liked so I may keep the challenge going in my travel sketchbook for awhile longer. I am happy to be using some old shades of grey Pitt markers after years of neglect. Very happy that I took on this extra challenge. Wish I had done something like this when I was in art school.