Alberto Pepe is a Postdoctoral Research Fellow at the Center for Astrophysics and at the Institute for Quantitative Social Science of Harvard University. He is an information scientist interested in the study of socio–technical systems: networks of people, artifacts, data and ideas. He recently obtained a Ph.D. in Information Studies from the University of California, Los Angeles with a dissertation on scientific collaboration networks, which was awarded with the 2010 Best Dissertation Award by the American Society for Information Science & Technology. Prior to starting his Ph.D., Alberto worked in the Information Technology Department of CERN, in Geneva, Switzerland and in the Scientific Visualization Department of CINECA, the Italian Scientific Consortium, based at the University of Bologna. Alberto holds a M.Sc. in Computer Science and a B.Sc. in Astrophysics, both from University College London, U.K. Alberto was born and raised in the wine–making town of Manduria, in Puglia, Southern Italy.