Terry Gross

One of the world's most influential Zen masters, Thich Nhat Hanh championed "engaged Buddhism," which combines meditation and anti-war work. He died Jan. 22. Originally broadcast in 1997.

Imani Perry, a professor of African American studies at Princeton University, was born in Birmingham, Ala., and has always considered it home, even though she moved north as a child. In her new book, South to America, she recounts her travels to the South — its cities, rural areas and historic sites — and reflects on the region's history of slavery and racism.

By age 5, Keaton was a star in his family's vaudeville act; he went on to star in and direct silent films, performing jaw-dropping stunts. Slate film critic Dana Stevens profiles Keaton in a new book.