A quirky, clever guide for everyone who loves to look up. Where do clouds come from? Why do they look the way they do? And why have they captured the imagination of timeless artists, Romantic poets, and every kid who's ever held a crayon? Journalist and lifelong sky watcher Gavin Pretor-Pinney reveals everything there is to know about clouds, from history and science to art and pop culture. Cumulus, nimbostratus, and the dramatic and seemingly surfable...