There are just two simple knots to master, to make furoshiki bags and gift wrap. The single knot, and the square knot. The square knot uses two corners of the furoshiki. I fold each corner in on itself, once or twice, just as I would a paper aeroplane. Then I have neat pointed fabric ends just like in the photo above.
1. Put the left-hand point (B) across and in front of the right-hand point (A).
2. Bring the point of A forward and under B so as to make a simple, neat granny knot, keeping the fabric flat and smooth. Shuffle the ends a little, so that they approximately regain an equal length.
3. Fold end B across the central knot, so that it is horizontal.
4. Fold A vertically down across end B.
5. Push end A under end B and out through the loop to make a smooth, square reef knot.
6. To finish, slightly spread and twist both ends so that they are leaf-shaped. If the fabric is reversible, twist them around so that the reversible side shows uppermost.
Perfect! You're now ready to make furoshiki!