The fisherman’s knot is a fantastic yet simple way to tie 2 pieces of cord or rope together. It’s secure yet easy to undo again afterwards. Here’s a short guide on how to tie it.
Step 1
Tie a simple thumb knot in one piece of cord.
Step 2
Slip the second piece of cord through the thumb knot.
Step 3
Tie a thumb knot in the second piece of cord, around the first piece.
Step 4
Pull both thumb knots tight and bring them next to each other.
You might want to also look at these posts: evenk knot, taut line hitch and midshipmans hitch.