Untitled (bleed-through of previous page, left page); Untitled (design for "water cube," right page)

Brown ink and brown wash on cream antique laid paper

Black crayon on paper

Colored marker on paper

Graphite on off-white wove paper

Black marker and opaque watercolor on paper

Black ink, graphite, colored pencil, and white gouache on dark beige card

Graphite on off-white wove paper

Watercolor on off-white wove paper

Colored marker on paper

Brown ink and brown and gray wash over black chalk on cream laid paper

Brown ink on off-white antique laid paper, framed with graphite

Black ink on thin cream wove paper