This "See America" poster, commissioned by Print Collection, is modeled after the posters made by the Works Progress Administration in the 30s to encourage Americans to engage in domestic tourism by visiting National Parks. Buy it here.
The Calm Gallery, a poster shop run by a husband and wife team in the U.K., sells prints with simple graphics and tongue-in-cheek messages. Buy it here.
The elementary graphic images in Italian designer Enzo Mari's Simboli Sinsemantici series from 1972––including an arrow, wave, clover, star, moon, and cube––were newly editioned in 2013. Available in the Dwell Store.