Extensively illustrated in full color, this comprehensive guide to the world of fly fishing offers in depth coverage of the equipment and techniques of the sport, safety precautions, fly tying, fly casting, the biology of fish, and more, along with tips and advice on how to improve skills, find the best places to fish, and purchase the right equipment and tackle.
Great info on casting, and casting technique. Lots of good troubleshooting advice.
Scant and unsatisfying on flies, the foods they imitate, how to animate (or not). Similarly frustrating on some advanced techniques. Would needs supplemental material on specific fish; but the book is large enough without it - can't really fault them.
Tons of information on fly tying, which I skipped - when I'm crotchety, old and retired, maybe a revisit.