Fair Isle Knitting by Sarah Don, 28 Traditional Designs, ISBN 978-0-486-45754-3. Paperback, 2007, 128 pages, charts and photos throughout, in excellent like-new condition. Boasting intricate geometric patterns and rich, natural colors, the knits of Fair Isle have roots in the fashions of Viking invaders, Norwegian immigrants, and Spanish sailors. In this treasury of authentic designs, Sarah Don introduces readers to the basic techniques and materials needed to create this form of patterned…