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

Colored marker on paper

Colored marker and blue ink on paper

Colored marker and red felt-tipped pen on paper

Black ink and adhesive on paper

Colored marker, black ink, and opaque watercolor on paper

Red and black marker on paper

Ink on postcard

Red and black marker on paper

Colored and metallic marker on paper

Red and black marker on paper

Blue and black marker on paper

Colored marker, black ink, and opaque watercolor on paper