I am often asked what knots I use to attach my backing to my flyline or flyline to leader. I almost always tell people the easiest way is to goole fly fishing knots and click on one of the links.
I recently found a great page from Redington on knots that I wanted to share. This is a simple and easy to follow guide to the most used knots in fly fishing.
http://www.redington.com/fly-fishing/knot-tying/
Wayne-o's Guide Service 