Libby Hemphill directs the Resource Center for Minority Data at ICPSR and holds a joint appointment as an Associate Professor in the UM School of Information. She joined ICPSR in September 2017 from Illinois Institute of Technology where she was an Associate Professor of Communication and Information Studies. She studies politicians, non-profit organizations, and television fans to understand how people use social media to organize, discuss, and enact social change. She also develops automated mechanisms for moderating and classifying content in social media in order to reduce toxicity in online conversations. Hemphill received a Ph.D. and M.S. in Information from the University of Michigan and an A.B. from The University of Chicago.