Christina Baker Kline is the author of the novel A Piece of the World (2017), about the relationship between the artist Andrew Wyeth and the subject of his best-known painting, "Christina’s World." Kline has written five other novels, and written or edited five works of nonfiction. Her 2013 novel Orphan Train spent more than two years on the New York Times bestseller list, including five weeks at # 1, and was published in 40 countries.