Untitled (blank, left page); Untitled (Halde Rheinpreußen, right page)

Black crayon on paper and mounted

Black, blue and orange crayon on paper

Ink, applied type, and collage elements on paper

Colored marker on paper

Ink with black and light green crayon on paper

Graphite on paper

Graphite on paper

Graphite on light gray paper

Red chalk on brown laid paper

Graphite on paper

Black marker on paper

Black marker, graphite, and opaque watercolor on paper