Professor in the Department of African and African American Studies and Founding Director of the The Hiphop Archive at Harvard University and Research Institute (HARI) at the Hutchins Center for African and African American Research

Adjunct Lecturer in Public Policy, Shorenstein Center at the Harvard Kennedy School

Professor of the Practice of Molecular and Cellular Biology; Richard L. Menschel Faculty Director of the Derek Bok Center for Teaching and Learning; faculty director, HarvardX; director, Life Sciences Education