Most likely the easiest of all knots, this is primarily used to tie a knot at the end of a rope. Some people will use this as a stop knot but I would rather use the Figure Eight Knot or even better a Stopper Knot instead.
In the description you will find the terms ‘load side’ and ‘working end’. For those of you that might be learning how to tie a knot for the first time, the ‘load side’ of a rope is the part of the rope that is not active in knot tying and the ‘working end’ is the part of the rope that does all the work.
Hold the rope in your left hand and point the working end up.
Take the working end of the rope and make a loop overlapping the load side of the rope.
Twist the working end under the load side and up through the loop.