Flyfishing
Fly fishing can be intimidating for many new and experienced anglers – however, it really doesn’t have to be.
The term "fly fishing" refers to a specific type of angling in which artificial flies are used to attract and catch fish. Various materials are used to craft a "fly" that is tied to the fishing line; this "fly" is then used to try to attract fish and deceive them into biting on it.

Even if you've never fished before, or even picked up a fishing rod, you can still fly fish.

Getting started:
http://www.flyanglersonline.com/begin/101/

Knots:
http://flyanglersonline.com/begin/knots