Steven Heller’s Daily Heller column explores how U.S. postage stamps evolved from utilitarian objects into graphic icons that reflect American culture. The article highlights the 1967 Thoreau 'hippie stamp' and Al Hirschfeld’s 1991 'Comedians' series as milestones in the USPS’s design history, emphasizing the role of illustration and cultural storytelling in stamp design. It also references Gail Anderson and Brian E. Smith’s new book 'Forever Stamps' celebrating 250 years of U.S. postal history.