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

Black printer ink, blue pen, paper, and adhesive on paper

Colored marker on paper

Black marker on paper

Graphite on paper

Graphite on paper

Colored marker and blue and black pen on paper

Black marker on paper

Watercolor and graphite, white gouache, collage element, on cream wove paper

Graphite on white paper

Colored crayons on paper

Graphite and colored crayons on paper

Black ink on paper