The Uni Knot is in many ways a great knot. If you only want to learn one knot then the uni knot is the one to learn. The uni not is an almost complete knot that can be used to attach lures or hooks, for joining lines (double uni knot), snelling hooks and it even works with most superlines and braids. The Uni knot is a multipurpose fishing knot that will prove it self in many situations.