This technique is a variation of relief printing, which uses a sheet of linoleum mounted on a plank of wood. Because linoleum has a smooth surface rather than the grainy texture of wood, the resulting prints are characterized by even areas of color and ink. As with woodcuts, linocut printing is a relief process where the areas which are carved away do not to receive ink. Separate blocks must be carved for each color in the print, however, artists can, using a reductive technique, use one block to print in multiple colors. In this instance, the artist carves further into the block after each color is editioned to reveal the next layer to be printed. Blocks are usually worked in color from light to dark, and as a result their surface is almost completely carved away, making it impossible to edition the print again.