A new book by alumna Heather McGhee ’09, The Sum of Us: What Racism Costs Everyone and How We Can Prosper Together, is creating major buzz. Blending interviews, personal stories, and empirical research, McGhee shows the toll of believing one group must advance at others’ expense. She’s been interviewed on “The Daily Show with Trevor Noah,” The New York Times’ “Ezra Klein Show,” and NPR’s “Fresh Air.”