Harry Lewis is Gordon McKay Professor of Computer Science at Harvard, where he has taught since 1974. He created much of Harvard’s undergraduate computer science curriculum and is now Director of Undergraduate Studies in Computer Science. He has taught many of Harvard’s remarkable computer science students, including both Bill Gates and Mark Zuckerberg. From 1995-2003 Lewis served as Dean of Harvard College, and in that capacity had general oversight of the experience of all Harvard undergraduates.