Building on the basics presented in the author’s previous book, Ashford Book of Spinning, this handbook provides more advanced spinners with information extending beyond the act of spinning—how to spin an adequate yarn and extend the range of yarns produced, what happens during the spinning process, and the relationship between the raw materials and the final output—for greater mastery of the craft. This new edition features up-to-date information about spinning wheels, new color photos, and seven new projects. Organized in four sections—wool, spinning wheels, yarn design, and projects—the text provides examples of a global range of fleece types, a detailed examination of the functions of bobbin and flyer wheels, a step-by-step analysis of spinning yarns of a predetermined size and twist count best suited to the properties of the fleece, and informative explanations of different spinning materials. The nine woven and knitted projects, including a fleece rug, skirt fabric, mittens, and a triangular shawl, are particularly suitable for handspun yarn.