The uni knot is the most useful and versatile fishing knot. You can use the uni knot to tie leader line onto the braided line, you can use a uni knot to directly tie a lure to your line, or you can ...

Here is a step by step photo gallery and video on how to tie a Bobber Stop knot. This knot is especially useful when fishing with a slip bobber when the depth the bait is presented is critical.