What is a Monotype? The artist draws his design in printing ink on a plate or sheet of glass and transfers it to a sheet of paper by running it through a press while the ink is still wet. The process was invented by Giovanni Beneditto Castiglione in the 1640's. It was revived in the 19th century, notably by Degas and continues to appeal to artists for the remarkable effects that can be obtained. Only ONE strong impression can be made by this process, hence its name, but sometimes a second, weaker impression is also printed.