Untitled (notes, left page); Untitled (sketch for Kunstmuseum Celle, right page)

Ink on postcard

Paper

Red and black marker, and black ink on paper

Colored marker and black ink on paper

Colored marker on paper

Graphite on white wove paper

Colored marker and graphite on paper

Colored marker on paper

Colored felt-tipped pen and black marker on paper

Watercolor, acrylic and graphite on off-white wove paper

Colored and metallic marker on paper

Colored marker and black ink on paper