
If you meant “terms” as fishing terminology, the best match is Straight Talking: An introduction to the basics of River Fly Fishing, which is specifically about demystifying river fly-fishing language.
If you meant learning the terms in practice, Orvis UK One to One Tuition on an Orvis Fishing Beat gives hands-on coaching on a trout river with dry flies and nymphs.
For a classic river-fly example, The Catch Series: Grayling Fishing on the Derbyshire Derwent is a guided moving-water experience using nymphs and dry flies.
If you want a concrete fly pattern tied to common river terms, Pale Morning Dun Emerger, RS2 is a PMD emerger for mayfly hatch situations.
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