The Albright Special or Albright Knot is a knot used in angling. It is a strong knot used to tie two different diameters of line together, for instance to tie monofilament to braid. The Albright is relatively smooth and passes through guides when required. Some anglers coat the knot with a rubber based cement to make it even smoother and more secure.
Slip tag end of lighter monofilament under your left thumb and pinch it tightly against the heavier strands of the loop. Wrap the first turn of the lighter monofilament over itself and continue wrapping toward the round end of the loop. Take at least 12 turns with the lighter monofilament around all three strands. Bend a loop in the tag end of the heavier monofilament and hold between thumb and forefinger of left hand. Insert the tag end of the lighter monofilament through loop from the top. Pull the standing part of the heavy mono and the standing part of the light mono.
With the thumb and forefinger of the left hand, slide the coils of the lighter monofilament toward the end of the loop, stopping 1/8" from end of loop. Using pliers, pull the tag end of the lighter mono tight to keep the coils from the slipping off the loop.
With your left hand still holding the heavier mono, pull on the standing part of the lighter mono. Pull the tag end of the lighter mono and the standing part a second time.