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

Graphite on paper, mounted

Graphite on paper

Graphite on paper

Graphite and white paint on paper

Black crayon on paper

Graphite on paper

Graphite on paper

Black marker on paper

Black marker and blue pen on paper

Black crayon on off-white wove paper

black and colored inks, graphite, applied type, typewritten text, and collage elements on paper

Black crayon on paper