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

Colored marker and black pen on paper

Colored marker and pen on paper, adhesive, and black marker on paper

black and colored inks, applied type, typewritten text, and collage elements on composition board

Graphite on paper

Graphite on paper

Graphite and colored pencil on paper

Graphite on paper

Colored marker on paper

Graphite on paper

Black and red inks on cream wove paper

Graphite and blue crayon on paper

Graphite on paper