Cyanotype is an antique photographic process distinctive for producing Prussian blue monochromatic prints and was used for reproducing photographs, documents, maps, and plans. Cyanotype is a remarkably simple process that employs two inexpensive chemicals and sunlight or UV. Prints can be made on any natural fiber: paper, cotton, silk, wool, wood, etc. To make a print, simply coat fabric or paper with the cyanotype sensitizer and, once dry, create prints by exposing to sunlight or UV, using objects or a film negative to create an image. After exposure, prints are processed in a tray of cool water and allowed to air dry.