Shakespeare wrote that a rose by any other name would smell as sweet. But if you cannot smell, does the rose lose its sweetness? The first and definitive book on the psychology of smell, The Scent of Desire traces the importance of smell in our lives, from nourishment to procreation to our relationships with the people closest to us and the world at large. Smell was the very first sense to evolve and is located in the same part of the brain that processes...