Kevin Cheng  ·  @k

If you’ve seen Twitter, then you’ve seen Kevin Cheng’s work. He led the redesign of their website before co-founding Incredible Labs, his current startup; there, he’s creating a mobile personal assistant named Donna.

Before that, he co-founded the UX web comic OK/Cancel, was the director of UX at social gaming startup Raptr, and designed Yahoo! Pipes. But as if that wasn’t enough, he also earned a master’s degree in human-computer interaction and ergonomics from University College London.