Jeffrey Heer is an Assistant Professor of Computer Science at Stanford
University, where he works on human-computer interaction, visualization
and social computing. The visualization tools developed by his lab (D3,
Protovis, Flare, Prefuse) are used by researchers, companies and
thousands of data enthusiasts around the world. In 2009 Jeff was named
to MIT Technology Review's TR35; in 2012 he was named a Sloan 
Foundation Research Fellow. He holds BS, MS and PhD degrees in Computer
Science from the University of California, Berkeley. He tweets
occasionally (@jeffrey_heer).