Square knot
Square Knots are strong and one of the most common knots used in macramé. The square knot is done in 2 parts. Start out by bending the left working cord, cross it over the filler cords and then under the right working cord. Pass the right working cord behind the filler cords and pull it through the loop created by the left working cord. Gently pull on both cords. The knot is now half way done.
You finish the knot by doing the same, but in reverse. Bend the right working cord, cross it over the filler cords and then under the left working cord. Pass the left working cord behind the filler cords and pull it through the loop created by the left working cord. Now pull on both cords again. You are done!