Untitled (adhered sketches of light sculptures, left page); Untitled (adhered sketches of light sculptures from 1972, right page)

Graphite on paper

Ink on vellum

Black crayon on paper

Colored marker on paper

Watercolor over graphite on off-white wove paper

Ink on paper

Watercolor and graphite on cream wove paper

Graphite on paper

Colored marker, black pen, and graphite on paper

Graphite on paper

Gouache on cream paper

Crayon on paper