Michael Martin, Subway Graffiti Artist Iz the Wiz

In the 1970s and ’80s, chances were good that anyone traveling the New York subways rode at least once in a car emblazoned with “Iz the Wiz.” Cryptic but euphonious, often abbreviated to the ultraminimal Iz, the signature could be seen all over the subway system: fat capital letters spray-painted on a door, below a window, across an entire car or even along the full length of a train.

Iz the Wiz was a legend among graffiti artists, by almost all accounts “the longest-reigning all-city king in N.Y.C. history,” as the graffiti Web site at149st.com puts it. In other words, Iz put his name, or tag, on subway cars running on every line in the system more times than any other artist.

In August of 2003 he self-curated a solo gallery exhibition in New York City showcasing his legal artwork.

Michael Martin — Iz the Wiz — died on June 17 in Spring Hill, Fla., where he had moved a few years ago. He was 50. The cause was a heart attack, said Ed Walker, who is working on a biography and documentary of Iz the Wiz. The YoCo's will keep you posted on when they are expected to be released.