"From the best-selling 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, scientist and storyteller, is beloved by readers for his neurological case histories, his fascination and familiarity with human behavior at its most unexpected and unfamiliar....

Challenging our understanding of what it means to be human, Joel Salinas, a Harvard-trained researcher and neurologist at Massachusetts General, shares his experiences with mirror-touch synesthesia, a rare and only recently identified neurological trait that causes him to feel the emotional and physical experiences of other people. Performing a spinal tap, he feels the needle slowly enter his lower back. If a disoriented patient flies into a confused...

"In this intimate and inspiring book, Susan Barry shares the heartfelt letters through which she and Oliver Sacks became friends, laying bare the meeting of two people endlessly intrigued by the world and its mysteries"--