The pitzen knot has various uses, but it's ideal for securing a hook to a fishing line. It's relatively easy to learn and quick to do once you know how. In this video the folks at ITS Tactical teach you how to tie a pitzen knot.
ITS Tactical, Inc. is dedicated to showcasing the everyday gear and DIY projects that can help you live better on the tactical side of life. They don't limit their content to any particular viewpoint, rather their goal is to become an open-source collection of different methods, ideas and knowledge that could one day save your life. Search ITS Tactical on WonderHowTo for more videos.