From the #1 bestselling author of Inside of a Dog and The Year of the Puppy--an incredible journey into the olfactory world of man's best friend ( O, The Oprah Magazine), Alexandra Horowitz's follow-up to her New York Times bestseller explains how dogs experience the world through their most spectacular organ--the nose.In her fascinating book . . . Horowitz combines the expertise of a scientist with an easy, lively writing style ( The New York Times Book Review) as she imagines what it is like to be a dog. Guided by her own dogs, Finnegan and Upton, Horowitz sets off on a quest through the cutting-edge science behind the olfactory abilities of the dog. In addition to speaking to cognitive researchers and smell experts, Horowitz visits detection-dog trainers and training centers; she meets researchers working with dogs to detect cancerous cells and anticipate