How to Tie and Fish the Copper John, the Barr Emerger, and Dozens of Other Patterns, Variations and Rigs. Learn Barr's methods for tying his favorite flies, with step-by-step instructions and clear color photos so even inexperienced tiers can create the Copper John, Barr Emerger, B/C Hopper, Tung Teaser, Slumpbuster, and more. In Barr Flies, John Barr shares his "confidence" patterns, the flies that he carries with him at all times to cover nearly every scenario an angler might encounter on the water. When used at an appropriate time with a good presentation, they are guaranteed to catch fish. Barr tells how he developed each fly, gives tips on when and how to fish them, and explains how he fishes multiple-fly rigs with the Copper John as the center of a 3-fly system that optimizes fish-catching potential.