Study for portrait of Derek Bok in front of triptych with President's chair

Black chalk on off-white laid paper, fixed

Charcoal and oil on cardboard

Black and colored chalk on heavy cream wove paper

Graphite on white wove paper

Graphite on paper

Acrylic, graphite, and computer print-out on off-white wove paper

Black ink, watercolor, and charcoal on beige wove paper

Watercolor and white gouache over graphite on off-white wove paper

Pastel on blue wove paper

Sketchbook with brown cloth-covered cardboard covers

Watercolor over graphite on white wove paper

Watercolor on off-white wove paper