My guest is Johanna Hartelius. She is a professor at the University of Pittsburgh. Her research focuses on rhetorical theory and criticism with an emphasis on expertise, public memory, and digital rhetoric. She studies the cultural and political implications of experts’ and laypersons’ rhetorical constructions of knowledge and experience, particularly as these constitute points of entry into public discourse, traditional and virtual. She is currently developing a book on experts and the digital commons.Special Guest: Johanna Hartelius .