From Tibet to New York City, from Mongolia to Paris, Peru, and Ghana-in fact everywhere on earth, we see dogs living with humans in a kind of intimacy not found with any other animal. The mystery of it still defies explanation, but these extraordinary photographs reveal that its uniqueness is understood throughout the world. Famed wildlife photographer Art Wolfe has chosen one hundred of his favorite photographs of dogs—featuring shots from every continent of the world—and teamed up with bestselling animal writer Jeffrey Moussaieff Masson to create a remarkable book that will be treasured by dog lovers far and wide.