Sketches
Man, I love a good sketch. They're very underapreciated because they are done so quickly. But I think a sketch implies a deeper understanding of the subject than a finished piece. The object of any drawing ought to be to communicate the subject to the veiwer as simply and completely as possible. A sketch can do all that and at the same time has an extra liveliness to it that is often missing from a finished drawing. My goal is to someday be unable to tell the difference between a drawing that I do off hand and a drawing that I spend a lot of time on.