How to Tie a Surgeon's Knot
The Surgeon's Knot, also known as the Double Surgeon's Knot, ranks as one of the best and easiest knots to tie for joining lines of equal or unequal diameters. It is simply two overhand knots with the entire leader pulled through the knot each time. It must be tightened by pulling on all four strands to properly seat the knot.
Watch the video below for animated instructions on tying the Surgeon's fishing knot.