Two sketches for portrait of Derek Bok with President's chair and "The Great Salt": seated facing right

Black marker and graphite on graph paper

Watercolor over graphite on off-white wove paper

Graphite on cream wove paper

Charcoal on off-white laid paper

Watercolor and graphite on white wove paper

Graphite on thin off-white wove paper

Watercolor on white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Watercolor over graphite on heavy off-white wove paper

Blue ballpoint ink on pink wove paper

Graphite on off-white wove paper

Graphite on off-white wove paper