Michael Lesk worked at Bell Labs from 1970 to 1984 on the Unix development team. His contributions included the tools for word processing, plus tools for compiling and networking. In addition, he wrote the Portable I/O Library and he was part of the team that developed the C language preprocessor. He left Bell Labs to manage the computer science research group at Bellcore. From 1998 to 2002, he was head of the Information and Intelligent Systems division at the National Science Foundation. Today, Lesk is a professor of Library & Information Science at Rutgers University.