First U.S. Postage Stamp Goes on Sale
The Art of the Book… on Postage Stamps
A Letter to Unadopted Artwork - The Postal Museum
5276 - 2018 First-Class Forever Stamp - STEM Education: Science - Mystic Stamp Company
THE ART OF POSTAGE STAMPS.
1773/5414 - 1979-2019 Literary Arts Series set of 33 stamps - Mystic Stamp Company
Literary Arts National Postal Museum
USPS Celebrates Award-Winning Children's Book Author and Illustrator Tomie dePaola - Newsroom
How the USPS Chooses Its Literary Stamps