Untitled (animal eating, left page); Untitled (sketches of artist's uncle [Walter Pietschmann], right page)

Black ink on cream wove paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Graphite and colored pencils on paper

Graphite on paper

Colored marker on paper

Watercolor with black ink on paper

Graphite with purple and yellow ochre crayon on paper

Opaque and transparent watercolor, black ink, black chalk, pastel, crayon, and graphite on off-white modern laid paper

Colored and metallic marker on paper

Chalks, paint, gouache, ink, wash, and graphite on paper