From the bestselling author of Gratitude and On the Move, a final volume of essays that showcases Sacks's broad range of interests--from his passions for ferns, swimming, and horsetails, to his final case histories exploring schizophrenia, dementia, and Alzheimer's.Oliver Sacks, renowned scientist and storyteller, is adored by readers for his neurological case histories, his fascination and familiarity with human behaviour at its most unexpected and unfamiliar. Everything in