Stencils were popular as a method of book illustration, and for
that purpose the technique was at its height of popularity in
France during the 1920s when André Marty, Jean Saudé and many other
studios in Paris specialised in the technique. Low wages
contributed to the popularity of the highly labour intensive
process.When stencils are used in this way they are often called
"pochoir". In the Pochoir process, a print with the outlines of the
design was produced, and a series of stencils were used through
which areas of color were applied by hand to the page. To produce
detail, a collotype could be produced which the colors were then
stenciled over. Pochoir was frequently used to create prints of
intense color, and is most often associated with Art Nouveau and
Art Deco design.