Subheading 491110 covers printed matter whose primary purpose is to advertise a specific product or service — catalogs, brochures, and promotional leaflets distributed to potential customers. If the printed article has an independent informational, artistic, or reference value beyond promoting a product, it is more likely classified under 491191 or 491199. The intent and distribution method of the material are key factors.

Printed pictures, designs, and photographs — including art prints and photographic reproductions produced by mechanical or photomechanical processes — fall under subheading 491191. Original hand-produced works of art are not printed matter and are classified in a different chapter entirely. The distinction turns on whether the image was produced by a printing process.