In a phenomenon too prevalent to be mere chance, little girls all over the Western world wake one day to find themselves completely taken over by the love of all things equine. Melissa Holbrook Pierson was one of those horse-crazy girls who later returned to riding with a new appreciation for the nature of horses. Melding memoir, sociology, history, anecdote, and a bit of prose poetry, Dark Horses and Black Beauties delves beneath the shallow hypotheses...