Gail Callahan discovered weaving in the 1990’s, leading her to a small business called The Kangaroo Weaver. A few years later, she began dyeing for personal use. The following year, Valley Yarns asked her to dye yarns exclusive to WEBS, America’s Yarn Store, in Northampton, Massachusetts. She now teaches dyeing at WEBS, and continues to dye for them as well as for her own business, The Kangaroo Dyer. She is the author of Hand Dyeing Yarn and Fleece.