What is the difference between relief and intaglio?

Relief and intaglio are two distinct printmaking techniques. In relief printmaking, the raised surfaces of a block (such as wood or linoleum) are inked and pressed onto paper, producing an image where the inked areas stand out. Conversely, intaglio involves incising designs into a metal plate; the ink is applied to the entire plate and then wiped off the surface, leaving ink only in the recessed lines, resulting in an image that is recessed below the surface of the paper. These methods yield different visual textures and effects in the final print.