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To get something that clean looking, there is no "manipulation" of any photo. They imported it into Illustrator (or any vector based program) and created a custom vector of 2 faces, added some gradients and transparency.
 
What specific type effect are you referring to? There's really not much to it.

The only thing might be finding a similar typeface, outline it and then just tweaking it to your liking.
 
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