Untitled (calculations, left page); Untitled (calculations, right page)

Black crayon on tan wove paper

Colored marker on paper

Colored marker on paper

Gouache, crayon, watercolor and charcoal on paper

Black marker on paper

Colored marker on paper

Colored marker and black pen on paper

Graphite on paper

Black crayon on paper

Black marker on paper

Graphite on paper

Black marker on paper and adhesive on paper