Novice fly fisherman start fly tying with a predictable set of materials. Their benches are neatly arranged with small bags of elk hair, pheasant feathers, stray pieces of chenille and yarn. But eventually they find that not only are these materials more expensive than they need to be, they are also largely unnecessary. And so they starts making substitutions, using trial and error to gradually build up a bench of funky, personalized materials that work just as well as what the "experts" recommend. For the first time, here is a book that truly demystifies fly tying, making it accessible to any fisherman with a vice, a hook, a few dabs of glue, and a handful of twisty-ties. Tying legend Jay "Fishy" Fullum brings together a lifetime of substitution experience to give invaluable advice on appropriate substitution materials. He describes how to find them and make them tier friendly, and how to turn them into flies that are practically guaranteed to catch fish.