Stylistically, U.S. postage stamps have become quite diverse in the last 50 years, primarily due to advances in printing technology. Stamp artists can now capture an ever-expanding array of subjects more dynamically, from history to fantasy, from social concerns to our favorite pastimes. Today, the look of stamps ranges from black-and-white scratchboard to full-color photography, from formal portraits to portraits with vignettes that provide context and mood. Circling the globe in editions of millions, stamp art has taken flight.