"A wonderful portrayal of a brilliant, eccentric man," this biographical memoir by an award-winning author is the untold story of Dr. Oliver Sacks ( People). Lawrence Weschler began spending time with Oliver Sacks in the early 1980s, when he was profiling the neurologist for The New Yorker. Almost a decade earlier, Dr. Sacks had published Awakenings—the account of his long-dormant patients' miraculous return to life. Over the ensuing four years, the two men worked closely together until, for personal reasons, Sacks asked Weschler to abandon the profile. The two remained close friends over the next thirty years and then, just as Sacks was dying, he urged Weschler to take up the project once again. This book is the result of that entreaty. Weschler sets Sacks's brilliant personality in vivid relief. We see Sacks rowing and ranting and caring deeply; composing the essays that would form The Man Who Mistook His Wife for a Hat and waging intellectual war against a medical and scientific establishment that failed to address his greatest concern: the spontaneous specificity of the individual human soul. Here is the definitive portrait of Sacks, whose entire practice revolved around the single fundamental question he asked each of his patients: How are you? Which is to say, How do you be? A question which Weschler, with this book, turns back on the good doctor himself. "Engrossing. . . . This is Sacks at full blast: on endless ward rounds, observing his post-encephalitic patients . . . exulting over horseshoe crabs and chunks of Iceland spar." —Barbara Kiser, Nature "Thoroughly engaging and enchanting." — Kirkus Reviews, starred review "Does a particularly good job intertwining Sacks's searching empathy with his sheer strangeness." — New York Times Book Review