Originally Posted by striperjim
Back to the original question.
The Uni Knot
Popular fishermans knot. Used for connecting hooks, swivels, rings and lures. Its main advantage is that it retains virtually 90% breaking strain. Easy to tie even in the the dark after some practice.
Looks like "animated knots by Grog". An excelent site for learning any knot. To tie a braid to a leader, you just tie a Uni in both lines, looping one through the other. A good knot, but also check out the Albright knot.