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

Graphite with red, blue, and yellow crayon ; graphite and blue crayon on paper

Graphite on paper

Colored marker on paper

Colored paper collage with a clear coating, black ink and black crayon mounted to a light pink board

Graphite on paper

Black and red inks, graphite, and applied label on paper

Graphite on paper

Colored marker on paper

Colored marker on paper

Colored and metallic marker on paper

Graphite on paper

Charcoal on paper