LOOP Akademi ~ Albright knot for attaching the backing to the fly line 

This video shows how to attach your backing to a fly line using the Albright knot. This is an excellent knot when the fly line does not have a welded loop to connect to and also very good for attaching your backing to a nylon shooter running line.
If you have a welded loop in the rear end of your fly line please watch the video on how to tie a double figure of eight knot video.