The Institute of Contemporary Art in Philadelphis、ベネチア・ビエンナーレ、リバープール・ビエンナーレ、ダイチ・プロジェクト（NY）などで個展を開催。2007年に初の美術館での個展をPennsylvania Academy of Fine Artsで開催。
展覧会以外では街にアートを増やす事を目的としたプロジェクトを多数開催。その中でも2003年にCreative Timeと一緒に「Dreamland Artist Club」をつくり45名以上のアーティスト達にコニー・アイランド（NY）の店頭サインや壁画をコミッションした。
In 1999 Powers stopped writing graffiti and tending bar to dedicate himself to being a full-time artist. His work has been sho at Venice and Liverpool Biennials, as well as numerous shows at Deitch Projects. Powers was a Fulbright scholar in 2007. He us the grant to paint in the streets of Dublin and Belfast. His work in Belfast’ s Lower Shankill area was inspired by the area’ s political murals; Powers told the New York Times that he was “taking the form of the murals, which are powerful for all the wrong reasons, and trying to retain some of the power and use it in a really good way.”
Building on what he started in Ireland, Powers is now working on an ongoing mural project about the complexities and rewards of relationships titled A Love Letter for You. In Philadelphia, Stephen (call him ESPO) and his crew (call them ICY) painted m than 50 walls along the elevated train along Market Street in West Philly. The project, sponsored by a grant from the Pew Cent for Arts and Heritage through the Philadelphia Exhibitions Initiative, and produced with the Philadelphia Mural Arts Program, has generated positive reviews from the New York Times, the Wall Street Journal, and The Blog of Sean Combs.
The accompanying book A Love Letter for You, shot by photographers Adam Wallacavage and Zoe Strauss, was published by Free News Projects and is now available. It is distributed by DAP in New York City. Powers is also the author of a book detailing his personal graffiti history, The Art of Getting Over ( St. Martin’ s Press 1999), as well as the graphic novel, First and Fifteenth: Pop Art Short Stories (Villard Press, 2005).