The characteristics of fleece -- its structure, grease content, and fiber diameter -- vary widely depending on the breed of sheep the fleece comes from. In this comprehensive guide, Beth Smith profiles 21 types of fleece, from bouncy and pliant to lacy and lightweight. A sheep-by-sheep reference describes the best way to wash and spin each fleece into rich, soft yarn. You'll soon be confidently choosing the right fleece, spinning it to perfection, and enjoying the perfect yarn for your next fiber creation.