he broght the art to the streets

Andrew Zephyr Witten is a graffiti artist, lecturer and author from New York City. He began creating graffiti in 1975 and first signed using the name "Zephyr" in 1977. He has been identified as a graffiti "elder", who along with Futura 2000, Blade, PHASE 2, Lady Pink and TAKI 183 invented styles and standards "that continue to be used and expanded upon today"
Much of Zephyr's original work was applied on subway trains. Mr. Witten has commented on this period of his work:

"We felt we understood the trains more than the Transit Authority. Teenagers were running the system. We decided when, where, how much we wrote. Graffiti showed that the Transit Authority was not in control."
Witten was part of the first wave of graffiti artists to make the transition to galleries, collectors and commercial work. In the early 80s, he showed at NYC galleries specialized in graffiti, such as the FUN Gallery and 51X. His art was part of a five-man show including Fab Five Freddy, Dominique Philbert, Futura 2000 and Dondi White that toured Japan in 1983.
His works can be seen in the Hip-hop culture documentary Style Wars and he was featured as himself in the landmark hip-hop motion picture Wild Style. He is co-author of a 2001 biography of fellow graffiti artist, Dondi White: Dondi White Style Master General: The Life of Graffiti Artist Dondi White. He is interviewed in the 2005 DIY graffiti video The Art of Storytelling, where he talks about fallen graffiti artist Nace. He was featured in the documentary Bomb It.