Monty Roberts has been studying horses for his entire life. His extraordinary ability to communicate with them has earned him the title "horse whisperer." He has written a new book about his life from studying wild mustangs in the Nevada desert to demonstrating his horse training methods to the Queen of England. The book is called "The Man Who Listens to Horses: The Story of a Real-Life Horse Whisperer" (Random House). Roberts was featured on "Dateline NBC."