he has a  lot of amazing photos to go alone with it , what i notice is that most of his photos all have contrast and the black and white texture to it as well , i like how most of his pictures have lots of  texture as well , they all looks very serious and kind of spooky as well .  He later made films with Jean Renoir.
Taken prisoner of war in 1940, he escaped on his third attempt in 1943 and subsequently joined an underground organization to assist prisoners and escapees , now i get why his photos are the way they are he founded Magnum Photos. After three years he had spent travelling in the East, in 1952, he returned 

The motion blur is simply that your camera’s shutter remains open for a significant period of time. you get motion blur when your shutter speed is long, whereas you freeze the action when your shutter speed is short. If your shutter speed is too fast its not going to capture the photo well you won’t need your subject to move much at all before you start to see blur. How long should your shutter speed be? Here, the speed of your subject comes into play. A moving snail and a moving racecar will give you very different results at the same shutter speed. The slower your subject, the slower the shutter speed needs to be to create blur.

make sure to keep the background focused and also keep the shutter speed in a right tone  shutter speed is crucial to achieving a beautiful blurred look. Even small changes will have a big impact upon your camera will set the aperture to ensure the shot is well exposed. It’s a very handy mode for motion blur photography because it ensures you get the movement effect , you can get the good shutter speed and the motion of the photos