How many times have you been on a dog walk when your little dog has his or her nose glued to a spot, sniffing away? The book "Being a Dog: Following the Dog into a World of Smell" has some of the answers as to why your pup's nose is always seeking out new scents, sniffing butts and finding gross things to roll in. Very fascinating information about how the dog nose works. The book also dives into the human nose, encouraging you to use it more often to take in the scents around you. If you're dying to know what makes sniffing so much fun for dogs, this book is for you.