USPS Forever Postcard Sailboats stamps celebrate a favorite American outdoor activity with two colorful new postcard stamps. They feature abstract illustrations that capture the joyful sensation of being on the water on a beautiful day. The graphic art was designed and created by artist Libby VanderPloeg, who also created the lettering for the word “postcard,” freehand on a digital tablet. Antonio Alcalá was art director for the project.