After the decline of the main relief technique of woodcut around 1550, the intaglio techniques dominated both artistic printmaking as well as most types of illustration and popular prints until the mid 19th century.
[5] The word "intaglio" describes prints created from plates where the ink-bearing regions are recessed beneath the plate's surface. Though brass, zinc, and other materials are occasionally utilized, copper is the most common material for the plates.
^Strauss, Victor (1967). The printing industry: an introduction to its many branches, processes, and products. Washington: Printing Industries of America. ISBN0835202720.
^Mustalish, Rachel (2003). "Printmaking Techniques of the WPA Printmakers". In Lisa Mintz Messinger (ed.). African American Artists, 1929–1945: Prints, Drawings and Paintings in the Metropolitan of Museum of Art (Metropolitan Museum of Art). Yale University Press. pp. 86–88. ISBN0300098774.
^Mueller White, Lucy (2002). "Intaglio Processes". Printmaking as Therapy: Frameworks for Freedom. Jessica Kingsley. pp. 108–109. ISBN1843107082.