The Surgeon's Knot

This highly versatile knot allows you to connect two similar or dissimilar diameters of monofilament, or monofilament to braided wire. You must tighten firmly all four ends or a weak knot results. It is often used to build tapered leaders.

Knot photos and accompanying captions are courtesy of Fly Fishing Magazine. Visit http://www.flyfisherman.com/skills/lkknots/ for more information.