The Quilter's Pocket Reference Quide: An Easy Guide to Yardage and More
Peggy has been quilting for years.  The book grew out of her  collection of calculations, directions and notes about calculating yardage  and other quilt measurements.  At a certain point she realized that she was  reinventing the same formula each time she started a quilt. She put all of  those bits and pieces together into a comprehensive guidebook.