Penny WalshPenny Walsh is the author of Yarn: How to Understand, Design and Use Yarn. A visiting lecturer in textile arts at several colleges in the U.K., Penny teaches and researches traditional techniques of dyeing and spinning, using ecologically sond ingredients and renewable sources. Part of the design group AO Textiles, she has worked on fabrics and yarns for Jean Muir, Pecler's of Paris, Laura Biagiotti, The Royal Opera House, and Aveda Eco Fashion. Read More Read Less