Untitled (sketch by Piene's daughter [Chloe], left page); Untitled (sketch by Piene's daughter [Chloe] right page)

Black crayon on off-white wove paper

Black marker and tape on paper

Graphite on paper

Colored marker, opaque watercolor, b/w photocopy, and adhesive on paper

Colored marker on paper

Black crayon on paper

Black crayon on paper

Colored crayons on paper

Graphite on paper

Graphite on paper

Graphite on off-white wove paper

Ink on paper