Profitable Knitting Series: Yarns for the Knitter by Tessa Lorant (Good, 1980, Pbk, 64 pgs, The Thorn Press)

We are fortunate to have a very large choice of knitting yarns in this country. However, as the choice grow larger it becomes more difficult to know which yarns are best for what purposes. This book is perhaps the only publication which deals with this subject in detail.