Untitled (visual field sketch, left page); Untitled (snowfield sketch, right page)

Colored marker and black ink on paper

Paper

Colored marker and black ink on paper

Paper

Colored marker, black ink, and opaque watercolor on paper

Colored marker on paper

Ink on postcard

Black marker on paper

Colored felt-tipped pen and black marker on paper

Black ink and adhesive on paper

Colored marker on paper

Black paper