If you have the opportunity to put a poster up on the streets of New York City, why not teach something? Subway advertisement created for the School of Visual Arts in NYC. If you haven't read Rilke's "Letters To A Young Poet," trust me, read it.
Social issue poster created in 1997 to raise awareness of AIDS. The original of this poster is housed in museums around the world as well as the Museum of Modern Art, NYC. Originally these were promotional posters for a Japanese paper company, I chose to give them more meaning.