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

Graphite on paper

Watercolor over graphite on white wove paper

Colored and metallic marker and black pen on paper

Colored crayons on paper

Black crayon on paper, mounted

Colored marker and black pen on paper

Colored marker on paper

Purple and brown crayon on paper

Blue marker and black pen on paper

Black crayon on off-white wove paper

Black ink, opaque watercolor, b/w photograph, and adhesive on paper

Blue crayon on paper