:: Knots : The Figure Eight Knot ::  
Description
TThe Figure Eight Knot is a stopper knot. It is used at the end of a line to keep it from sneaking away. Often seen at the end of jib sheets.
Step by Step Instructions
Form a loop going over the standing part
   
Now loop under the standing part
   
Pass over the first part of the initial loop
   

And through the loop. Tighten and you're done. Remember - Over, Under, Over and Through.