These samples were all done directly from life with varying time limits. The quicker sketches below required an abbreviated, 'shorthand' technique. Here shading is limited, as the goal of the exercise concerns the delineation of essential features.
Study for Self Portrait - Graphite on vintage, laid paper
Although most drawing commissions are not this refined (this was done more as an academic exercise), it does nevertheless demonstrate the potential of a more involved work. It combines a blended, tonal method of shading along with traditional form hatching.