Hodgkinson executed most of his printmaking in the process known as etching, another classic, early process whereby the metal plate, copper, is entirely coated with wax. The artist then draws onto the plate breaching the surface where his lines cut the wax. The plate is immersed in acid which can only bite the plate where exposed from the wax. It is then cleaned; ink spread across the plate, deeply into the etched lines with maybe some surface tonal ink residue. Damp paper laid over the plate and the whole rolled through the press. The damp paper is forced into the gullies filled with ink and a reverse image of the artist’s original image appears on the paper.
Hodgkinson also worked in screen-printing and lithography. In lithography the design is drawn or painted onto a stone (zinc plates are frequently used now as lighter and less fragile) with greasy chalk, the stone wetted. When the greasy ink is rolled onto the stone it will not take on the wet parts but sticks on the parts which are already greasy off which the water ran. Each colour is printed separately.