The big-hearted neurologist and author has died at age 82. If you'd like to try one of his books, the obvious place to start is The Man Who Mistook His Wife for a Hat, although if you're in the mood for a novel, Richard Powers's The Echo Maker features a Sacks-like writer. (Some have complained about the way Powers treated Sacks, but I respectfully disagree; in fact, my way into Sacks's prose came through The Echo Maker.)