OLIVER SACKS was the author of twelve previous books, including The Mind’s Eye, Musicophilia, The Man Who Mistook His Wife for a Hat, and Awakenings (which inspired both the Oscar-nominated film and a play by Harold Pinter). The New York Times referred to Dr. Sacks as “the poet laureate of medicine,” and he was a frequent contributor to The New Yorker and The New York Review of Books. He lived in New York City, where he was a professor of neurology at the NYU School of Medicine. He died in 2015.