Mail art is a worldwide art and music movement that began in the early 1960s. the principle is simple you send visual art (but also music, sound art, poetry, etc.) through the international postal system. Mail Art is sometimes known as Postal Art or Correspondence Art. Mail Art is a network, based on the principles of barter and equal one-to-one collaboration.
See This Window the pseudonym of Peter Bright.
- Cassette Culture was an ART network (thiswindow.org)