whereby an air stream is blown onto paper sheets to create a riffling effect that separates the sheets as they are fed to the printing press. Agate A type size of 5 1/2 points... layout. Airbrush A compressed air tool that dispenses a fine mist of paint or ink; used in illustration and photo retouching. Albion Press A hand operated printing press made.... American Paper Institute An organization that correlates all paper related information. Angle Bar In "web-fed" printing (printing on rolls of paper as opposed to single sheets...