**From the legendary author of** The Man Who Mistook His Wife for a Hat **: a volume of essays on everything from primordial life and the mysteries of the brain to the ancient ginkgo and the power of the written word. Magical . . . [ **Everything in Its Place]** showcases the neurologist’s infinitely curious mind.** —People Magazine In this volume, Oliver Sacks examines the many passions that defined his life–both as a doctor engaged with the central questions of human existence and as a polymath conversant in all the sciences. *Everything in Its Place* brings together writings on a rich variety of topics. Why do humans need gardens? How, and when, does a physician tell his patient she has Alzheimer’s? What is social media doing to our brains? In several of the compassionate case histories included here, we see Sacks consider the enigmas of depression, psychosis, and schizophrenia for the first time. In others, he returns to conditions that have long fascinated him: Tourette’s syndrome, aging, dementia, and hallucinations. In counterpoint to these elegant investigations of what makes us human, this volume also includes pieces that celebrate Sacks’s love of the natural world–and his final meditations on life in the twenty-first century.