David Carson...
Is an American graphic designer who is best known for his innovative magazine designs and awesome experimental typography. He also was the art director for the magazine Ray Gun - of the 'rock-and-roll alternative genre.
His style is pretty stand out, with different fonts, size and colours used to create a piece, including overlaying text. A great example of this is the Obama cover for G2:
The colours are bold, the idea is simple and its overall looks great. With only 3 words and 2 letters he is able to show the entire campaign of Obama and then the text in Sans Serif - making it free and without restraint of traditions, showing a new era for American politics.
With his simple yet powerful designs, I hope to take this style to create some piece of my own in graphics - seeing how little you need to say to mean something big.