As a change from the technical flavour of our questions I would like to turn to photography as an art, so I am afraid this is inevitably subjective.
Which photographer, in your mind, is especially inspirational, why and if possible give an example of his/her work.
This is a continuation of a similar question asked last year by CodeToGlory (What is your favourite photograph?)
To get the ball rolling I will post an answer below.
Since this is now community wiki, I (@lindes) will add: one photographer per answer (and please look for that photographer in existing answers before adding your own), but you may submit multiple answers if you find multiple people inspiring. (I think that's what makes the most sense for this type of question. If others disagree, please edit this paragraph. :)