Page 448 - Bob Holtzman "The Field Guide to Knots How to Identify, Tie, and Untie Over 80 Essential Knots for Outdoor Pursuits"

56. Double Fisherman’s Knot

Also known as: Grinner Knot, Grapevine Knot, Double English Knot

This simple variation on the Fisherman’s Knot places Double Overhand
Knots around the standing parts of the opposite rope. It is much more
secure than the standard Fisherman’s Knot and works better in larger rope.

Uses: joining ends of rope of any weight, including fishing monofilament and anchor lines
Pros: easy to tie; quite secure

Cons: difficult to untie

Instructions

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