Page 75 - Jane Renolds - Knots Your Complete Step by Step Guide to Knot, Knot Uses, and Knot Tying

Round Turn with Two Half Hitches

This knot takes the initial strain of knotting, in the first place. When
handling a heavy load, you can add more turns—making it one of the most
creative kinds of knots around. It is perfect for mooring because it allows
you to control the strain and go to the direction you want.

http://www.animatedknots.com/imagesprelim/round_turn_and_two_half_hitches.jpg

Instructions:

1. First, let the end of the rope pass twice through the pole.

2. Then, make your way towards the standing end so that you could
make one clove hitch.
3. Anchor bend, and then make a half hitch to end the knot.