The Uni Knot is widely used for attaching hooks, rings and swivels to the end of the line.
Thread the eye of the hook with the line so the hook is suspended on a loop.
Encircle the main line with a tag so another loop is formed.
Wrap the double strand inside the loop with the tag.
Make four wraps in all, leaving the tag protruding from the loop.
Close the knot but do not pull it tight just yet.
Slide the knot down onto the eye of the hook, pull it tight and trim the tag.
Knots kindly supplied from Geoff Wilson's Complete Book of Knots & Rigs - available from Ausfish.com.au