Book excerpt: "How Green Was My Valley" is Richard Llewellyn's bestselling -- and timeless -- classic and the basis of a beloved film. As Huw Morgan is about to leave home forever, he reminisces about the golden days of his youth when South Wales still prospered, when coal dust had not yet blackened the valley. Drawn simply and lovingly, with a crisp Welsh humor, Llewellyn's characters fight, love, laugh and cry, creating an indelible portrait of a people.