In books like “Breathe” and “South to America,” National Book Award and MacArthur “genius” grant winner Imani Perry writes about Blackness in America with clarity, elegance, rage, and joy. Perry is a Professor of Studies of Women, Gender and Sexuality and of African and African American Studies at Harvard University. Her latest book is “Black in Blues,” a meditation on the color blue and its role in Black history and culture. Perry talks to us in front of an audience of students at Woodburn High School.