In the story, the color black and white is represented in many different ways. This picture symbolizes white as knowledge. This can be related to the different impacts light and dark had and the very different connotations they hold.
The shadows on this image look like they are being reflected from some sort of blinds/windows. the fact that the photo is black and white it makes the shadows and light on the persons body stand out a lot more with a really good coordination of stripes.