Page 90 - Patrick Moreau - Marine Knots How to Tie 40 Essential Knots

Middleman’s Knot

This is a particularly safe loop, which provides excellent hold, even with a stiff
nylon line.
It is a classic fish hook knot, preferred by line fisherman over the bowline
knot.

The loop can be tied directly in the middle of a rope, but the version using
the end of the rope is much more useful because you can pass the string through
the eye.

1 - Start with a half knot, working end passing over.
After inserting the working end in the eye, come back through the half knot in the same place.