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

Graphite on off-white wove paper

Black crayon on pale pink wove paper

Black and white chalk on pink wove paper

Graphite on paper

Watercolor and black ink on off-white wove paper

Graphite on off-white wove paper

Black chalk and gray wash, some scraping, on off-white antique laid paper

Graphite sketch on ruled paper

Watercolor, black ink and graphite on cream laid paper

Graphite on brown tracing paper

Colored marker, adhesive, and glossy pamphlet on paper

Watercolor over graphite on cream card