PHASE 2 was one of the most influential early urban Graffiti artists, most active during the 1970s. PHASE 2 was a pioneer of bubble lettering, which he began utilizing just as Graffiti began catching on as a subway-based art movement. Many other urban subway artists quickly picked up the style and began incorporating it into their own work and adding their own stylistic markers.
PHASE 2 continued to experiment with the style, inventing multiple variants on bubble letters. In 1972, PHASE 2 became a founding member of United Graffiti Artists (UGA), and his work has been exhibited in a number of Urban Art exhibitions.