Details a lifetimes experience making nymphs and nymph fishing work better. If you need instruction on the angle of descent of a nymph, how to get your nymph deep enough, fast enough to imitate a current-driven natural or practically any special nymphing technique, you'll find it here. 60 min.
Joe Humphreys taught flyfishing at Penn State for twenty years and has condensed that experience plus another 30 years of nymphing into 60 minutes of intense instruction and illustration.