In "Joy Goddess," journalist and historian A’Lelia Bundles brings to life a fascinating and misunderstood figure of the early 20th century. A’Lelia Walker was more than a glamorous socialite. She was a cultural catalyst whose salons and soirées became the vibrant center of the Harlem Renaissance. Geoff Bennett spoke with Bundles, who is Walker’s great-great-granddaughter, about her new book.