Libby Copeland is the author of The Lost Family: How DNA Testing is Upending Who We Are. This book explores the rapidly evolving phenomenon of home DNA testing, its implications for how we think about family and ourselves, and its ramifications for American culture broadly. The Wall Street Journal says it’s “a fascinating account of lives dramatically affected by genetic sleuthing.” The New York Times writes, “Before You Spit in That Vial, Read This Book.” The Washington Post says The Lost Family “reads like an Agatha Christie mystery” and “wrestles with some of the biggest questions in life: Who are we? What is family? Are we defined by nature, nurture or both?”