Untitled (note and date, left page); Untitled (sketch for Kunstmuseum Celle, right page)

Ink on postcard

Blue and black marker on paper

Blue and black marker on paper

Ink on mat board

Colored marker and black ink on paper

Colored marker, black ink, and opaque watercolor on paper

Colored and metallic marker on paper

Colored marker on paper

Ink on postcard

Colored marker on paper

Black ink on paper

Red and black marker on paper