Matisse’s decision to expand the range of his printmaking with tonal lithographs occurred at the same time he shifted his concentration in drawing to the use of charcoal. In charcoal drawings of 1922, the artist used erasure and smudging to model form and manipulate the effects of light. He was able to obtain similar chiaroscuro effects when working on a lithographic stone by rubbing back a dark tone or scratching in a highlight.