The writing's on the wall
A dog makes its own contribution to a picture by Banksy - the pseudonym of the British graffiti artist whose work is internationally famous, though his real identity is unknown.
New examples of Banksy's art have appeared in New York after he announced a month's residency in the city. A few people even got a bargain when the artist, whose work is expected to fetch upwards of $150,000 at auction, set up a pop-up stall in Central Park selling paintings for $60.