Hope...with artist Shepard Fairey

No doubt this image of then Presidential candidate Barack Obama will go down in history as a deeply symbolic image. Designed by street-turned-graphic artist Shepard Fairey, the image was donated to the Obama campaign.

While marketers and historians will spend years analyzing Obama's campaign, adaptation of this image marks a definitive tipping point.

Here, Fairey discusses the impetus behind the image...and how it has evolved since the inception. It's a fascinating piece that has lingered long in my mind.