Do you know which types of clouds signal severe weather? Or have you ever wondered how clouds form in the first place? Discover tons of fascinating information about different cloud families, unique cloud characteristics, optical phenomena – from rainbows to light crystals. Filled with beautiful photography and remarkable details about each cloud's composition, appearance, cause, and more, Know Your Clouds is a must-have pocket guide for readers of all ages and anyone who often looks up to the sky in wonder.