Alfred Stieglitz

American photographer, publisher and gallery owner Alfred Stieglitz (1864–1946) helped establish photography within modern art.

The geometry is brilliant. The people are still people.

The bright gangway cuts across the picture like a sentence with a very firm opinion. Above and below it, bodies gather into different rhythms. Curved chains, a tilted hat, dark openings and white clothing keep your eye travelling. Stieglitz promoted photography as art through publishing and exhibitions; this picture became central to his account of a move towards modernist form.

But formal elegance is only half the discussion. The ship was travelling from New York to Europe, not carrying this group into America: the Library of Congress corrects that familiar miscaption. A beautifully organised image can still conceal what we do not know about its people. That tension is useful for street photography now. Notice shape without reducing strangers to convenient shapes. Then caption what you can establish. Your composition may be clever; it does not give you a free biography of everybody in it.