The short video below is very good in my opinion. I really like it for a number of reasons. First, the skill of the tier is excellent & he does a good job of showing you how this fly comes together. Second, he's using the old style silk (or you could use gut) leader. This is old-school, folks, before hooks had eyes. It is exactly how this fly would have been tied back in the day when it was a new design. Third, in addition to giving you some tips on how to fish classic wet flies, he shows you what this fly looks like underwater, in the drift. That kind of information is invaluable. I don't think we, as fly anglers, do this enough - really looking at our flies in the drift. Knowing that can make a world of difference.