The Figure Eight Loop is one of the best known and most widely used of all knots. It is probably the safest and quickest way to form a loop at the end of a rope. It is comparatively easy to tie and it stays tied. Its disadvantages - it's difficult to adjust and cannot easily be untied after loading - tend to be outweighed by its general usefulness.
To Tie a Figure Eight Loop:
Double over the rope and form a loop.
Now bring the doubled working end over the doubled standing part and back up through the original loop.
Pull the doubled working end through the original loop and slowly draw the knot together by pulling the loop and the main standing part.
Tighten the final knot, making sure that the figure eight pattern and the loop have been correctly formed.