A Love Letter to the City: Stephen Powers’s street art – in pictures

New York graffiti artist Stephen Powers daubs his super-sized murals and messages on city walls and rooftops from Brooklyn to Philadelphia, Belfast to São Paulo – his new book, A Love Letter to the City, collects them in one place. See more

Photos: Matthew Kuborn (first three) and Adam Wallacavage (remaining twoo, click photos for captions).