Untitled (blank, left page); Untitled (notes on "Planeten" with sketches, right page)

Graphite on paper

Black marker on paper

Black marker on paper

Black, blue and red crayon on paper with torn corners

Colored pencil, gouache, graphite on vellum

Graphite on paper

Black marker on paper

Graphite on paper

Black and metallic marker on paper

Black marker on paper

Black and red marker and black pen on paper

Watercolor and graphite on paper