Untitled (bleed-through of previous page and color transfer, left page); Untitled ("space shuttle images" and color transfer, right page)

Watercolor over graphite on off-white wove paper

Black crayon and graphite on off-white wove paper

Charcoal on cream laid paper

Gouache, ink, graphite, halftone photograph, and newspaper on paper

Colored crayons on paper and mounted

Graphite on paper

Oil paint on offset lithograph, 1989 edition of Flora de la Real Expedición Botánica del Nuevo Reino de Granada (1783-1810)

Black ink on Asian paper

Watercolor and black ink on parchment

Olive crayon on paper

Brown marker and price sticker on paper

Colored pencil on blueline print