Page 57 - Berndt Sundsten "My First Book of Knots: A Beginner's Picture Guide"

2. Wrap the yarn tightly around the rope and over the loop towards the end of
the rope.

3. Continue so that the wrapping is at least as long as the rope is thick, but

don’t wrap over the whole loop. Tuck the end through the loop.

4. Pull on the end, marked x, so that the yarn is pulled under the wrapping
and locks.

5. Finish by trimming the ends of the yarn with scissors.