SJK 171 (aka Steve the Greek), born Steve Kesoglides is a New York City graffiti artist who was active during the late 1960s and 1970s. Some claim that he is generally credited with originating the “squiggly lines,” a style of outlining graffiti.[better source needed]
SJK 171 attended the High School of Art and Design along with a number of other early graffiti artists, and began writing in 1968 under the name SJK 171. His work was the first triple outline, large colorful letters to appear on the 1 Line of the New York City Transit System. It was in early 1971 that SJK 171 was the first to use the “swiggly radiant energy lines” that 10 years later were used by Keith Haring. SJK 171 is also credited with pioneering the use of arrows in graffiti writing around this same time.