Page 20 - Geoffrey Budworth, Jason Dalton "The Little Book of Incredibly Useful Knots"

Japanese square knot

This neat and symmetrical two-strand knot can embellish the lanyard holding a knife, whistle,

or stopwatch, can secure a fashionable neck scarf, or fasten off a robe’s waist tie.

Form a bight in one cord and pass the working end of the other up through it (1). Then pass the
cord around the bight to encircle it (2). Pick up the other (so far inactive) end and make a locking
tuck (3). Pull evenly, a bit at a time, on each of the four ends in turn to tighten the knot (4).