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

Ink and applied type on paper

Colored marker on paper

Graphite on off-white wove paper

Colored marker and green pen on paper

Charcoal, stumped, and pastel on cream laid paper

Graphite and blue crayon on paper

Graphite on paper

Ink on paper

Colored marker and ink on paper

Black marker on paper

Graphite on paper

Graphite with blue and yellow crayon on paper