Winner of this year’s National Book Award for nonfiction, Katherine Boo’s Behind the Beautiful Forevers is a deftly written, creatively composed, and painstakingly researched work of narrative nonfiction that provides insight into the lives of a group of residents of Annawadi, a large, fast-growing Mumbai slum. Boo’s deference to and respect for her subjects and their stories is evident and ensures that the narrative, while often heartbreaking, is never mawkish or patronizing.