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

Graphite on paper

Colored marker on paper

Graphite with blue and yellow crayon on paper

Graphite on paper

Black crayon on back of letter

Graphite on paper

Graphite on paper

Paper

Black crayon on paper

Colored marker, paper, and adhesive on paper

Black marker on paper

Graphite on paper