Internet, le 15-05-2005, http://en.wikipedia.org
Information trouvée : Raymond Edward Johnson (1927 - 1995) was an important post-Surrealism, pre-Pop collage
artist. Johnson was also the founder of the New York Correspondence School, and therefore
the originator of "correspondence art," the inter-disciplinary art form that uses
the postal service in some way (also known as mail art).
Ray Johnson, 1972