Surgeon's Knot
This easy-to-tie knot is popular for joining a heavy monofilament leader to a lighter monofilament main line.

(1) Lay six to eight inches of line and leader parallel and overlapping.

(2) Using the two lines, tie an overhand knot.

(3) Proceed to tie a second overhand knot.

(4) Pull both lines in opposing directions to gather and tighten the knot. Trim tag ends.