A testament to spontaneity of a street photographer or a staged photo? Robert Doisneau was on assignment for Life magazine in 1950 for a story on romance in Paris when he took the photo above.
Although he is also known for many other famous street-photography photos, Elliott Erwitt dedicated the bulk of his photographic work to dogs. He loves them: dogs on the street, dog portraits, dogs larger than children, dog piles and most famously, jumping dogs. Of his 21 books, four are devoted to his dog photography.