A recent issue of Smithsonian Magazine features the story of Pecorino, a Tuscan-born mutt and companion of Viennese photographer Toni Anzenberger. Pecorino, whose presence in Anzenberger's photos was once an unwanted annoyance, is now the undisputed star of a collection of photos from around the world. Anzenberger waits sometimes months to get clearance for Pecorino to travel with him to various countries, and claims that the pup, though open to direction, usually chooses his own poses. He's a charmer, that's for sure.
http://www.smithsonianmag.com/arts-culture/10021486.html