Colorful Geometric Illustrations of London 2012 Olympics - by Athens, Greece-based visual designer Charis Tsevis. Created for Yahoo!'s coverage of the London 2012 Olympic games, he created 6 illustrations portraying athletes in motion.
How To : Adobe Illustrator Geometric Art. This is a very interesting type of art. I do like how it uses simple shapes to create a portrait. I know for a fact that you can do this easily in Photoshop with one of the brush tools.