The Blood Knot is a brilliant knot and can be used in a lot of situations. This is a very basic knot and is used for attaching your main line to loops on leaders and swivels, as well as hooks. It is very easy to tie and is often the first knot an angler is taught.
1 Pass your line through the eye of a swivel or hook.
2 Wrap the tag end up the line five times like this.
3 Next put the tag end back through the first loop.
4 Moisten, pull down and trim off the tag end.