What's old is new again in music, fashion, entertainment, and politics. Reading through this gem from another era brings to light how very little original information is available in newer publications to those interested in nymphing for trout. Charles Brooks was one of the pioneers of nymphing western waters and his book captures the essence of those early days to a tee. New fly patterns come and go, but Brooks's Stone and several others illustrated and discussed here are still around. Trout never get sick of them and the methods of fishing them haven't changed at all. Most of Brooks's fishing experience was in and around Yellowstone Park and stoneflies were a primary food source for the fish he targeted. But smaller mayflies, caddis, and midges were significant too. Methods for fishing each of these are necessarily different and Brooks goes into great detail about the how, why, and where of fishing each. HIs discussion and photos of different types of waters on a stream are especially helpful and enlightening here. Sure, you might not tie up a Skunk-Hair Caddis, but you might use a Peeking Caddis, or LaFontaine's Cased Caddis, all of which imitate the same bug, and can be fished the exact same way. You won't learn a whole lot about midges in this book, but you will get an excellent crash course in fishing nymphs for larger trout with a minimum of prose, no hyping of products (that wasn't really common until the '80s), and a bare minimum of self-aggrandizing. This book is a classic and should be read by anyone and everyone who's interested in nymph fishing for trout.