If a man has lost a leg or an eye, he knows he has lost a leg or an eye; but if he has lost a self - himself - he cannot know it, because he is no longer there to know it. In this extraordinary book, Dr. Oliver Sacks recounts the stories of patients struggling to adapt to often bizarre worlds of neurological disorder.

Here are people who can no longer recognize everyday objects or those they love; who are stricken with violent tics or shout involuntary obscenities, and yet are gifted with unusually acute artistic or mathematical talents. If sometimes beyond our surface comprehension, these brilliant tales illuminate what it means to be human. 

Part of the Picador Collection, a series showcasing the best of modern literature.