A professional who this group includes occupations concerned with assembling and setting type matter for printing by means of typesetting or composing machines.

• Includes linotype machines which assemble letters into lines and cast strips of type from type metal; monotype machines which compose type matter in separate letters; and phototypesetting machines which assemble and photograph mats of individual characters as a line of type on film or photographic paper.
• Occupations whose duties include substantial typing tasks concerned with cold type setting of type are included in group 203.