The Leader used in this demonstation is the ESP Tapered Shockleaders tied using the Mahin Knot.
Form a small overhand loop with the shockleader. (See picture below)
Now pass your mainline through the loop. (See picture below)
Then whip the mainline 7 times up the leader. (See picture below)
Now whip the mainline 6 time back the other way and pass it back through the overhand loop. (See picture below)
Moisten the line thoroughly and slow tighten it down so it forms a nice neat knot and trim the tag ends. (See picture below)
The shockleader is now ready to use, the knot needs to be atleast 3 turns onto the spool with the knot positioned at the bottom of the spool to avoid it getting snagged on the cast.