Untitled (front endpaper, left page); Untitled (Piene signature, right page)

Graphite on off-white wove envelope

Black marker on paper

Colored and metallic marker, black ink, paper, and adhesive on paper

Graphite on paper

Colored marker on paper

Black crayon on paper

Colored marker on paper

Ink on paper

Graphite on paper

Black crayon on paper

Graphite on paper

Black marker on paper