rypoint printmaking is a simple intaglio 'black line' technique. Lines are incised into a plate of metal, plastic, or surfaced card. Ink is then rubbed into the lines, and wiped off of the plate surface.
The ink remaining in the raised 'burr' is what gives drypoint its characteristic softness of line, and the 'wiping off' can be used to heighten the expressiveness of the print.
The burr is worn down with each pass through the press, so editions tend to be small, and varied, as each print is inked and wiped individually.