Susan Brubaker Knap and I taught for three days at our Once in a Blue Moon retreat. Each student had a day and a half with one of us then switched. Susan taught photo realistic painting techniques and I taught abstract design principles. Opposite ends of the spectrum. These abstract designs might appear to be quite simple and perhaps they are. But each is completely unique, a new and hard-won idea. I think many of the students progressed far on their journey towards original design and abstract thought. Each worked hard to learn and understand the underlying principles of the visual language.