SPIN FISHING WITH DUPONT NYLON MONOFILAMENT, published by Herter's Inc,, Waseca, MN. Paperback, approximately 4" x 5 1/4" in size. This item has 46 numbered pages of tips on using DuPont Nylon Monofilament.  The book is in fair to good condition....the top of the front cover is torn (see scan). Will combine purchases to reduce shipping costs.