Untitled (drawing by Piene's daughter, left page); Untitled (bleed-through of following page with title for drawing, right page)

Colored marker on paper

Colored crayons on paper

Ink, graphite, and colored washes on paper, spatter-painted

Black crayon on paper

Black crayon on paper

Graphite and colored crayons on paper

Colored marker on paper

Graphite

Ink on paper

Blue pen on personal notepaper, adhesive, and colored marker on paper

graphite, red, blue, and black ballpoint ink, colored pencil, watercolor, and gouache with scratchwork on cream wove paper

Graphite on paper