Date of Birth: 1890
Date of Death: 1976
Strand was an American photographer who helped establish photography as an art form in the 20th century. He did many different types of photography over his 6 decade career, but is perhaps most widely known as a modernist photographer.
He also did some film, producing several movies, including two commissioned by the Mexican government. He also served as a X-ray technician during World War I.During World War I, Paul Strand served as an x-ray technician,

This is Wall Street, his most famous image. I rate it a 10/10 because I really like the light and shadow contrast, especially the shadows cast by the lonely looking wall street executives. He really utilizes negative space fantastically well here also. 
http://photographyandimage.blogspot.com/2007/01/wall-street-new-york-by-paul-strand.html

“Camarets, France, 1951”
http://www.leegallery.com/photographers/120-paul-strand.html

 Paul Strand