5 W's are: WHO - WHAT - WHERE - WHEN - WHY and how this pertains to fly-fishing. You are WHO, this chapter covers the Gear, Skills, Knots, Tactics plus more, the WHAT is the FISH, sought after species and information on some fish, WATER is WHERE, and in this chapter we speak on River Hydraulics, How Rivers are made, and more, WHEN is about the food, the BUGS, hatches, what patterns to tie or buy, and top 25 fly patterns here, finally the WHY we fly fish, covering safety, the environment, conservation, the definition of fly-fishing and fly-fishing definitions. We speak the language of fly-fishers here at the W5 of Flyfishing.