Julia Alvarez joins Kevin Young to read and discuss “The Schoolroom on the Second Floor of the Knitting Mill,” by Judy Page Heitzman, and her own poem “Mami at Her Vanity.” Alvarez is the author of many novels, nonfiction books, children’s books, and poetry collections, including, most recently, “Visitations.” She has received a Hispanic Heritage Award, the F. Scott Fitzgerald Award for Achievement in American Literature, and a National Medal of Arts. She’s also the subject of a PBS “American Masters” documentary.