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

Watercolor on off-white wove paper

Black and white chalk on brown wove paper

Black ink on off-white wove paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Black ink on off-white wove paper

Turpentine wash with oil over graphite on off-white wove paper

Graphite on paper

Charcoal on cream laid paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Pastel, opaque watercolor, and graphite on paper

Graphite on off-white wove paper

Black crayon and ink on paper